How to Say Shut Up in Portuguese

Two sisters are fighting over the remote control in a living room in Recife. One of them yells "cala a boca" at the other, loud enough for the neighbors to hear. Ten minutes later they're sharing a bag of chips like nothing happened. Now picture a different scene: an American exchange student, three weeks into a semester in Lisbon, says the exact same phrase to his host mother because a phrasebook told him it means "quiet down." The room goes cold. Nobody laughs.

Same words. Two completely different outcomes. That's the real lesson buried inside a simple search like "shut up in Portuguese." Portuguese grammar has its famously hard corners, verb conjugations, nasal vowels, the subjunctive, the kind of thing our piece on whether Portuguese is hard to learn covers in detail. This isn't one of those corners. You can learn to spell "cala a boca" in about four seconds. The hard part is knowing who you're allowed to say it to, in what tone, and when you should reach for something else entirely. Get the words right and the social read wrong, and you'll do more damage than if you'd just stayed quiet yourself.

This guide gives you the direct translation first, because that's what you came for. Then it goes further than almost anything else you'll find online: the formal version, the Portugal version, the plural version, the phrase to use with a toddler, the phrase to use in a library, and the interjection that can mean either "shush" or "hey, listen up," depending entirely on how you say it. By the end, you'll know exactly which phrase fits which room, and where "shut up" sits compared to the friendlier phrases you already know, like how are you or good morning.

The Quick Answer: "Cala a Boca"

If you need the fast version, here it is. The most common way to say "shut up" in Brazilian Portuguese is "cala a boca." It's pronounced roughly "KAH-lah ah BOH-kah," with the stress landing on the first syllable of each word and the "a" sounds staying open and flat, closer to the "a" in "father" than the "a" in "cat." Say it slowly at first: "KAH-lah" then "ah" then "BOH-kah," and only speed it up once each piece feels natural on its own.

Literally, "cala a boca" means "shut the mouth" or "close the mouth." "Cala" comes from the verb "calar," to be silent or to silence something, and "boca" is simply "mouth." Put them together and you get a command aimed straight at someone's face: stop talking, right now, using your mouth as the target. The Cambridge Dictionary's entry for "shut up" lists "cala a boca" as the standard Portuguese equivalent, and Wiktionary's entry on the phrase confirms both the literal meaning and its informal, blunt register.

Here's the flag you need before you go any further: "cala a boca" is not neutral. It is not a polite request. It sits on the same shelf as "shut up" does in English, which is to say, blunt at best and outright rude at worst, depending entirely on who you're talking to and how you say it. If you walked up to a stranger in New York and said "shut up," you'd expect a reaction. The same is true in São Paulo. Reverso's translation examples for "shut up" from English to Portuguese show this pattern again and again: the phrase shows up in arguments, sibling fights, and moments of genuine frustration, almost never in polite requests or formal small talk.

Volume matters here too, and it's easy to miss if you're only reading the words on a page. Whispered, "cala a boca" can sound almost conspiratorial, the kind of thing you'd mutter to a friend during a movie so nobody else hears you tell them to hush. Shouted, it's a completely different animal, the verbal equivalent of slamming a door. Somewhere in between, said flat and even, it can sound almost bored, like someone who's had this exact argument a hundred times already and doesn't have the energy for round one hundred and one. None of that comes across in a dictionary entry. All of it comes across the second you actually hear a native speaker say it, or say it yourself and hear how your own voice shapes the words.

That's really the whole point of this guide. Reading "cala a boca" off a translation site tells you the words. It doesn't tell you the room you're allowed to say them in. And that gap between knowing a phrase and knowing how to actually use it out loud, in the right tone, at the right moment, is exactly the gap that trips up most people learning a new language. You can read "cala a boca" a hundred times on a flashcard and still freeze the first time you need it in real life, because reading a phrase and speaking it with the right weight in your voice are two different skills entirely. That gap is exactly what Comigo was built to close: you don't just read the phrase, you say it out loud, with a tone that matches the moment, until it's a reflex instead of a translation you have to think through first.

How Rude Is "Cala a Boca," Really?

This is the question that actually matters, and almost nothing online answers it honestly. So let's build a scale, the same way you'd build one for "shut up" in English, because the two phrases map onto each other almost perfectly.

Think about English for a second. "Shut up" between two best friends who are laughing and shoving each other is basically affectionate. "Shut up" from a stranger on the subway is aggressive. "Shut up" to your boss is a career-ending mistake. Same three words, three completely different weights, and the same ladder exists in Portuguese, running all the way from playful teasing at one end to a genuine insult at the other. It's the same ladder that governs how naturally you say hello or good afternoon to a stranger versus a close friend, just tilted toward the rude end of the scale instead of the polite one.

Portuguese works the same way, and Brazil in particular has a culture where loud, expressive teasing between people who are close is normal and even warm. Between siblings, best friends, or a tight group of coworkers who joke around constantly, "cala a boca" said with a laugh in your voice can be almost playful, closer to "oh stop it" than a real command. Say the same words to someone you barely know, to an elder, to a teacher, or to a boss, and you've crossed a clear line. It reads as genuinely rude, and in a professional or formal setting it can land as outright disrespectful, the kind of thing you'd never say to someone you'd otherwise greet with a careful, formal good morning.

Portugal shifts the calibration slightly. The culture there tends to be more reserved in public and formal settings than Brazil's, so the equivalent phrase, "cala-te," which we'll get to in a moment, can land as more pointed and more serious even among people who know each other, especially outside of very close friend groups. Nothing here is a hard rule carved in stone, tone and relationship always matter more than the specific word, but if you're new to the language, treat "cala a boca" and its cousins the same way you'd treat "shut up" in English: safe with people who already tease you constantly, risky with everyone else.

If you want the fuller picture of how Portuguese speakers use blunt or profane language and where the real lines sit, Wikipedia's overview of Portuguese profanity is a useful map of the wider landscape "cala a boca" sits inside. Babbel's rundown of common Portuguese insults makes a similar point from a different angle: plenty of the sharpest-sounding words in the language are used constantly in low-stakes joking between friends, and only turn genuinely hostile once the relationship or the tone changes. It's a phrase that leans rude, not a phrase that's automatically rude in every mouth.

Loud Country, Quiet Country: A Regional Gut Check

It helps to picture two very different rooms. In a lot of Brazil, especially in places like Rio de Janeiro or Salvador, conversation volume runs high by default. People talk over each other, laugh loudly, and a normal family dinner can sound, to an outsider, like the opening minutes of an argument that never actually arrives. In that kind of room, "cala a boca" tossed across the table barely registers as anything more than table noise, one more loud thing among many loud things.

Now picture a quiet apartment in Porto, or a formal dinner in São Paulo's more buttoned-up business circles. The baseline volume is lower, the pauses are longer, and a blunt "cala a boca" would stand out immediately, precisely because it breaks a calmer pattern everyone in the room has been following without saying so. Same phrase, same literal meaning, and a completely different splash it makes when it lands. None of this is a strict rule you can apply with a formula. It's a gut feeling you build by listening to how loud the room already is before you decide how loud, or how blunt, you're allowed to be inside it.

If you're brand new to a city, whether that's Recife, Lisbon, or somewhere in between, the safest early strategy is to listen for a week before you say anything blunt at all. Notice how loud strangers get with each other on the bus. Notice whether a shop owner raises their voice with customers or keeps it low and even. Notice how parents talk to their kids in a park, and how coworkers talk to each other in line for coffee. That baseline tells you far more about what's safe to say than any single rule in a guide like this one ever could, this one included.

Formal vs. Informal: "Cala a Boca," "Cale-se," and "Cala-te"

Here's where the grammar actually earns its keep, because Portuguese doesn't have one "you." It has at least two, and which one you use changes the command entirely.

In Brazil, the everyday "you" that most people default to in conversation is "você." That's the form you'll hear constantly in shops, at work, and among strangers being polite to each other, the same form underneath a simple thank you exchanged with a cashier. But "cala a boca" is technically built on the "tu" form, a pronoun most Brazilians barely use in daily speech outside a few regions. That's part of why "cala a boca" feels so informal and unpolished: it's grammatically the casual option even in places where "tu" itself has mostly disappeared from use. It's the phrase you grew up hearing at home, not the phrase you'd construct carefully in a formal sentence. A real example: "Cala a boca, cara, eu tô tentando ouvir!" ("Shut up, dude, I'm trying to listen!"), said between friends watching a game.

The version that actually matches "você," the form Brazilians use every day, is "cale-se" or "cale a boca." Same idea, same mouth-shutting image, but built on the formal conjugation. It's still a command to be quiet, and it can still sting, but it sounds more deliberate and less like a reflexive outburst. A WordReference forum thread comparing "cala a boca" and "cale a boca" walks through this exact distinction with native speakers weighing in, and the consensus lines up with what you'd expect: "cala a boca" is the gut-reaction version, "cale-se" or "cale a boca" is the version you'd use if you wanted to sound more controlled, or even more coldly furious, since a calm, formal command can hit harder than a shouted informal one. Picture a manager saying flatly, "Cale-se, por favor, vamos continuar a reunião" ("Be quiet, please, let's continue the meeting"), the kind of icy, formal command that stings more than a shout would.

Portugal flips the everyday default. There, "tu" is the normal, warm way to talk to friends, family, and people your own age, while "você" reads as noticeably more distant, almost stiff between people who know each other. That's why the Portugal version of "shut up" is "cala-te," built directly on that everyday "tu" form. It fits the way people there actually talk to each other day to day: "Cala-te, por favor, não consigo pensar" ("Be quiet, please, I can't think"). If this tu-versus-você split feels new to you, it's the same underlying grammar question covered in our guide to excuse me in Portuguese, which walks through why Brazil and Portugal made different defaults and how it shapes formality across dozens of everyday phrases, not just this one, including the way people say goodbye at the end of a call or a visit.

Here's the short version to keep straight: in Brazil, "cala a boca" is the blunt, common one and "cale-se" or "cale a boca" is the more formal, controlled one. In Portugal, "cala-te" is the everyday version people actually say, since "tu" is their default informal "you" the way "você" is Brazil's.

Telling a Group to Be Quiet: The Plural Forms

Sometimes it's not one person being loud. It's a whole table, a whole classroom, or a whole group chat's worth of people all talking over each other at once. Portuguese has plural commands for exactly this.

"Calem-se" and "calem a boca" are the plural imperatives, aimed at more than one person at a time. Think of a teacher facing a noisy classroom right after asking students what time it is and getting twelve different shouted answers at once, or someone trying to get an entire group of friends to quiet down so they can actually hear the movie. "Calem-se, gente, o filme já começou" ("Quiet, everyone, the movie already started") is a normal thing to hear at a Brazilian house party the second the opening scene starts. The blunt quality carries over from the singular forms: this is still a direct command, not a gentle request, so it fits the same situations where "cala a boca" or "cale-se" would already be appropriate, just aimed at several people instead of one.

The Phrase Family, at a Glance

Here's every version of "shut up" covered so far, side by side, so you can see how they relate to each other in one glance.

That last one deserves its own line. "Matraca" is a noisy wooden rattle or clapper, the kind used at festivals and soccer games to make a racket, so "cala a matraca" literally tells someone to shut off their own personal noisemaker. It lands somewhere between "shut your trap" and "put a lid on that rattle of yours" in English. It's more colorful and more memorable than plain "cala a boca," and depending on the tone behind it, it can feel more playful between friends or more cutting when aimed at someone with real annoyance behind it. Portugalist's rundown of Portuguese slang has more examples of this kind of colorful, image-based insult if you want a feel for how the language builds these phrases out of everyday objects instead of raw profanity.

The Softer Side: When You Don't Want to Say "Shut Up" at All

Most of the time, what you actually want isn't "shut up." It's quiet, and there's a real difference between the two. "Shut up" attacks the person. "Be quiet" or "could you keep it down" asks for a change in behavior without making it personal, which is exactly why these softer options exist and get used constantly in daily Portuguese life, right alongside everyday courtesies like please and thank you.

"Fica quieto" (for a boy or man) and "fica quieta" (for a girl or woman) mean "stay quiet" or "be quiet," and they're informal, built on that same everyday "tu" energy. Notice what's missing: no mouth, no "cala," nothing aimed at a body part. It's a request about behavior, not a command about anatomy, and that difference is exactly why it feels so much gentler. "Fica quieto, o bebê tá dormindo" ("Be quiet, the baby's sleeping") is about as common a sentence as you'll hear in a Brazilian household with a newborn. The formal versions, "fique quieto" and "fique quieta," swap in the "você" conjugation for situations that call for a little more distance or respect, the same conjugation swap that turns a casual how are you into a more formal one with someone you've just met.

For genuinely polite settings, like a classroom, a library, a meeting, or a quiet train car, "silêncio, por favor" does the job cleanly. It translates directly to "silence, please" or "quiet, please," and it works because it's phrased as an announcement to the room rather than a command aimed at one person. Practice Portuguese's collection of polite phrases is a good place to see how phrases like this one sit inside the wider system of everyday Portuguese courtesy, the same system covered from a different angle in our guide to saying please in Portuguese. That same source is worth a second look if you're trying to build out a full toolkit of polite requests beyond just this one, since it groups "silêncio, por favor" alongside dozens of other everyday courtesy phrases you'll want in the same situations.

And if you want the single most polite option on this entire list, it's a question, not a command at all: "podia fazer menos barulho?" ("could you make less noise?"). Phrasing a request as a question instead of an order softens it automatically, in Portuguese exactly the way it does in English. It's the kind of thing you'd say to a neighbor, a stranger on a train, or someone in a shared office, situations where "cala a boca" would be unthinkable but where you still genuinely need the noise to stop.

"Psiu": The Sound That Means Two Different Things

Say "psiu" (roughly "psew," a quick hissing sound that starts like an English "s" and slides into a soft "ew") and you're using one of the most flexible little sounds in the language. It's the Portuguese "shh," and it can mean two almost opposite things depending entirely on context and tone.

Used one way, "psiu" means "shush, quiet down," the same energy as pressing a finger to your lips. Used another way, it means "hey, psst," a quick sound to grab someone's attention across a room without shouting their name, the kind of thing you'd use to wave over a friend across a noisy café instead of yelling their name over the music. Wiktionary's entry on "psiu" lists both senses, and the Collins Portuguese-English dictionary entry confirms the same dual function.

So how do you tell which one someone means? Context does almost all the work. If someone's finger is near their lips, or a movie just started, or a baby just fell asleep, "psiu" means "quiet." If someone's trying to catch your eye across a crowded café, or wants to whisper something without the whole table hearing, that same "psiu" means "hey, over here." Tone matters too: a sharp, short "psiu!" tends to mean "quiet, now," while a softer, drawn-out one aimed at catching your eye tends to mean "psst, look at me." It's a small sound that rewards paying attention to the whole situation, not just the syllable itself.

Being Loud but Wanting to Be Nice About It

Here's a real situation that comes up constantly and gets almost no coverage anywhere online: someone near you is being loud, genuinely disruptive, and you need it to stop, but you don't want to be the rude one in the exchange. This is exactly where the softer phrases from earlier earn their place.

Start with the question form whenever you can. "Podia fazer menos barulho?" gives the other person an easy way to comply without feeling attacked, which matters more than it sounds like it should, since most people react defensively to a direct command and cooperatively to a polite question. If you're in a setting with a clear authority tone, a classroom, a library, a waiting room, "silêncio, por favor" works as a general announcement rather than a personal call-out, which spares everyone the awkwardness of being singled out. And for a lighter touch with someone you know reasonably well, "fica quieto" or "fica quieta" threads the needle: firm enough to register, soft enough to not start a fight.

The general rule: the closer you are to someone and the more casual the setting, the more directness you can get away with. The more distant the relationship or the more formal the room, the more you should lean on a question or an impersonal announcement instead of a command. Get that calibration right, use the right greeting when you first sit down, whether that's a warm good afternoon or a quick hello, and end things gracefully with a proper goodbye, and you'll sound like someone who actually understands the culture, not just someone who memorized a phrase off a list.

Talking to Kids: The Parent's Version

Parents and caregivers face this exact situation constantly, and most of them, most of the time, reach for something gentler than "cala a boca." Telling a small child to "shut the mouth" can feel disproportionately harsh directed at someone who's four years old and just excited about a cartoon, so "fica quieto" and "fica quieta" tend to be the default here instead, softer commands about behavior rather than anatomy.

"Psiu" earns a place in the parenting toolkit too, especially at bedtime or in public places like a doctor's waiting room, where a quick, gentle "psiu" paired with a smile does the job without any harshness at all.

To be honest about the full picture, though: plenty of stressed, tired, at-the-end-of-their-rope parents do say "cala a boca" to their kids in the heat of the moment, the same way plenty of English-speaking parents blurt out "shut up" they didn't quite mean the second it leaves their mouth. It happens. It's not the phrase most parenting advice recommends, but pretending it never gets said would be dishonest. If you're building out basic vocabulary for a household with kids, the guide to basic words in Portuguese and the one on house in Portuguese both pair naturally with this kind of everyday family phrase. And if you're the kind of parent who's still shaky enough in Portuguese that you sometimes have to admit I don't speak Portuguese to a teacher at drop-off, "fica quieto" and "psiu" are two of the highest-value phrases you can prioritize early, since you'll reach for them daily long before you need most of what's in a phrasebook.

"Chega!": The Adjacent Phrase People Confuse With "Shut Up"

One more phrase worth knowing, because it shows up in the same searches and the same real-life moments: "chega!" It means "enough!" and it's used to stop an argument, cut off a rant, or shut down noise that's gone on too long, but it's not quite the same as "shut up." "Chega" doesn't target someone's mouth specifically. It's broader, a general "that's enough, stop this now" aimed at a whole situation, an argument, a tantrum, a fight, rather than a command aimed only at talking. You'll hear a parent shout "Chega! Os dois, agora!" ("Enough! Both of you, now!") to break up a sibling fight, or a friend say it to calm down an argument that's escalating between two people who call themselves friends most days of the week, in moments where "cala a boca" would feel too aggressive but silence still isn't happening on its own.

"Chega" also works completely on its own, without a verb or a target, the way "enough!" does in English. A teacher can hold up a hand and just say "Chega," and every student in the room understands the whole sentence that isn't being said: enough noise, enough arguing, enough of whatever's been going on for the last five minutes. It's a useful phrase to keep separate in your head from "cala a boca," because reaching for "chega" instead of a mouth-focused command is often the more socially graceful move when the problem is the overall chaos of a moment rather than one specific person's talking.

Stronger Versions Exist, But We're Not Listing Them Here

Add a swear word to "cala a boca" and you get a noticeably stronger, more explicit version, the kind of intensified phrase bab.la's entry for the profane version of "shut up" documents without softening it. These intensified forms exist, they're commonly used in genuinely angry moments, and pretending otherwise wouldn't be honest. Tandem's guide to Portuguese insults and the earlier-mentioned Babbel piece on the same subject both cover this territory if you want a broader sense of where the profanity ceiling actually sits. But listing curse words in depth isn't the job of this guide. If that's what you're actually researching, our dedicated post on bad words in Portuguese covers profanity, intensifiers, and when swearing crosses from "heated" into "genuinely offensive" in far more depth than a few extra lines here could manage.

Mistakes English Speakers Make With "Cala a Boca"

A few patterns show up again and again with learners, and most of them come from treating this phrase like it's neutral, when it never was.

The biggest one: assuming "cala a boca" is a plain, everyday phrase you can drop into any situation, the way you might flip a light switch without thinking about it. It isn't. It carries real weight every single time, and forgetting that is how you end up saying something rude without meaning to.

Right behind it: using "cala a boca" with an elder, a boss, a teacher, or anyone deserving formal respect. Even in a language full of casual, warm slang, this is one of the fastest ways to sound disrespectful, since it collapses a formality gap that Portuguese speakers pay close attention to, the same gap that decides whether you greet someone with a casual hello or a more careful good morning.

Third: missing the tu-versus-você split entirely and not realizing why "cala a boca" sounds different from "cale-se," or why Brazil and Portugal don't line up the same way. This same confusion trips people up across a dozen other everyday phrases too, which is exactly why it's worth understanding properly rather than memorizing exceptions one at a time, the way it's laid out in the excuse me in Portuguese guide.

Fourth: assuming "psiu" is always a rude shush. It isn't. Context decides whether it means "quiet down" or "hey, come here," and reading it as automatically negative will make you misunderstand plenty of perfectly friendly moments.

Fifth, a subtler one: treating every phrase on this list as interchangeable. "Cala a boca," "fica quieto," and "silêncio, por favor" are not three ways to say the same thing. They sit at different points on a politeness scale, the same way "shut up," "quiet down," and "would you mind keeping it down" do in English, and picking the wrong one for the room is its own kind of mistake, even when the grammar is flawless.

And sixth: expecting to get this feel for tone from reading alone. Most people who've spent real time learning Portuguese will tell you the same thing: the phrases that actually stuck were the ones they heard out loud, in context, over and over, not the ones they highlighted in a textbook. Politeness scales are a listening-and-speaking skill first, a vocabulary skill second.

One last one, easy to overlook: translating word for word and assuming the English politeness rules carry over exactly. In English, adding "please" to almost anything softens it, "shut up, please" still sounds a little odd, but it takes some of the edge off. In Portuguese, tacking "por favor" onto "cala a boca" doesn't do nearly as much softening as English speakers expect, because the core command is still built on that blunt, mouth-targeting verb. If you want a real softening effect, you need to swap the whole phrase, not just decorate the rude one with a polite word bolted onto the end.

Real Dialogue: Seeing These Phrases in Action

Reading a translation is one thing. Hearing how it actually lands in a real exchange is another, so here are four short scenes.

Siblings joking around, Brazil:

"Oi, tudo bem?" ("Hey, how's it going?") "Você viu o que ela postou? Que vergonha." ("Did you see what she posted? So embarrassing.") "Cala a boca, você faz coisa pior toda semana!" ("Shut up, you do worse every week!") Both laughing.

That "cala a boca" lands as pure teasing here. The laughter before and after tells you everything the words alone don't, the same way a warm how are you at the start signals this is a friendly exchange, not a fight.

A parent and a young child at bedtime:

"Mas eu não tô com sono!" ("But I'm not sleepy!") "Psiu, filho. Fica quieto, já é tarde." ("Shh, sweetheart. Be quiet, it's already late.")

No "cala a boca" in sight. Just the two gentler tools, a soft "psiu" and "fica quieto," doing exactly what the moment calls for.

A classroom in Portugal:

"Calem-se, por favor. A aula ainda não acabou." ("Quiet, please, everyone. Class isn't over yet.")

Notice the plural command dressed up with "por favor," polite by classroom standards while still being firm enough to actually work on a room full of students who'd rather be somewhere else.

Two coworkers in an open office, Brazil:

"Será que dá pra falar mais baixo? Tô numa call." ("Could you talk a bit quieter? I'm on a call.") "Desculpa! Podia fazer menos barulho, sim, foi mal." ("Sorry! I could definitely make less noise, my bad.") "Tudo bem, obrigado." ("No worries, thanks.")

No shushing, no "cala a boca," just a polite question and an apology, followed by a quick thank you to close the exchange on a warm note before both of them say a quick goodbye and get back to work.

Moments like these are exactly why reading a phrase and being able to say it out loud, at the right speed, with the right warmth or firmness in your voice, are such different skills. You can read that bedtime exchange a dozen times and still hesitate the first time you actually need to say "psiu, filho" to a real, overtired kid at nine at night. Practicing with your eyes only gets you halfway there. Comigo is built around the other half: actual spoken practice, out loud, with a companion who reacts to you in real time, so the words are already living in your mouth long before you need them for real.

Frequently Asked Questions

Is "cala a boca" rude? Yes, by default. It's the direct equivalent of "shut up" in English: blunt at minimum, genuinely rude with strangers, elders, or in formal settings, and only softened into playful teasing when it's said between people who already joke around constantly, with a tone to match.

What's the polite way to say "be quiet" in Portuguese? "Silêncio, por favor" for a formal announcement to a room, or "podia fazer menos barulho?" if you want to ask a specific person as a question rather than a command. Both avoid the bluntness of "cala a boca" entirely, and both fit comfortably alongside other everyday courtesy phrases like please and thank you.

What does "psiu" mean in Portuguese? It's the Portuguese "shh," and it does double duty. It can mean "quiet down" or "hey, psst, come here," depending on the context and the tone behind it.

Is "cala a boca" the same in Portugal and Brazil? The literal phrase "cala a boca" is understood in both, but Portugal leans on "cala-te" as its everyday version instead, since Portugal defaults to the "tu" form in casual speech, while Brazil defaults to "você" even though "cala a boca" itself is grammatically a "tu" form Brazilians otherwise rarely use. The full explanation of why the two countries split on "tu" versus "você" lives in our excuse me in Portuguese guide.

How do you say "shut up" to more than one person? "Calem-se" or "calem a boca," the plural imperative, aimed at a group instead of one person.

What's a nicer way to tell a child to be quiet in Portuguese? "Fica quieto" or "fica quieta" for behavior-focused requests, or a gentle "psiu" paired with a soft tone, both far more common with kids than "cala a boca."

Does adding "por favor" make "cala a boca" polite? Not really. "Por favor" softens plenty of Portuguese phrases, but bolting it onto "cala a boca" doesn't erase the bluntness of the command underneath it. If you actually want a polite version, swap the whole phrase for something like "silêncio, por favor" or "podia fazer menos barulho?" instead of trying to dress up the rude one.

Bringing It Back Home

Remember those two sisters fighting over the remote, and that exchange student who used the exact same words with completely different results? The difference between them was never the Portuguese. It was everything sitting underneath the words: who they were talking to, how close that relationship was, and the tone riding along with the phrase. That's the real skill hiding inside a search like "shut up in Portuguese," and it's a skill you can't learn from a translation box alone.

You now know the full range, from "cala a boca" at its bluntest, through "cale-se" and "cala-te" and their formality splits, all the way to "fica quieto," "silêncio, por favor," and a well-placed "psiu" when what you actually want is quiet, not conflict. The words are the easy part. Saying them with the right weight, at the right moment, out loud, in a way that actually lands the way you mean it to, that's the part that takes real practice. That's exactly the gap Comigo is built to close: not another list to memorize, but a place to actually speak these phrases out loud until they stop feeling like translations and start feeling like your own words.