English has one word for "you." French has two — tu and vous — and choosing the wrong one can make you sound either strangely stiff or accidentally rude. It's one of the first things that makes learners nervous, but the underlying logic is actually simple, and native speakers are far more forgiving of foreigners than you'd fear. In this guide you'll learn exactly what tu and vous mean, who to use each with, how the French navigate the grey areas, and how to avoid the one mistake that genuinely lands badly.
The basic difference
Both words mean "you," but they carry different social weight:
Tu is informal and singular. You use it with people you're close to or on equal, relaxed terms with — friends, family, children, pets, and peers.
Vous is formal and plural. It does double duty: it's the polite "you" for one person you don't know well or who deserves respect, and the only "you" for addressing more than one person.
That plural role is the easy part: whenever you're talking to two or more people, it's always vous, no matter how close you are to them. The nuance is all in the singular choice — tu or vous for one person.
When to use tu
Reach for tu with:
Family — parents, siblings, children, relatives.
Friends and close acquaintances.
Children and teenagers — adults address kids with tu.
Peers in casual settings — fellow students, close colleagues, people your own age in relaxed social contexts.
Animals — pets are always tu.
The verb tutoyer means "to use tu with someone." If a French person says On peut se tutoyer ? ("Shall we use tu?"), they're warmly inviting you to drop the formality.
When to use vous
Use vous with:
Strangers and anyone you've just met, especially adults.
People in a position of authority or service — officials, shopkeepers, waiters, your boss.
Elders — older people you don't know well, as a mark of respect.
Professional and formal settings — until invited otherwise.
Any group of two or more people, always.
The matching verb is vouvoyer ("to use vous with someone"). When in doubt with a single adult you don't know, default to vous — it's the safe, respectful choice, and no one is ever offended by it.
The grey areas — how the French actually decide
Real life isn't a neat chart, and even French people occasionally hesitate. A few guiding principles:
Let the other person set the tone. If someone addresses you with tu, it's usually fine to reciprocate. If they use vous, mirror it until told otherwise.
Age and setting shift the line. Two thirty-somethings at a party will likely use tu immediately; the same two meeting in a formal business meeting might start with vous.
Workplaces vary enormously. A trendy start-up might be all-tu; a traditional law firm, all-vous. Follow the local norm.
The transition is often made explicit. Moving from vous to tu can be a small social milestone, sometimes proposed out loud with On se tutoie ?
The mistake that actually sounds rude
Here's the one to avoid: using tu with someone who expects vous — an older stranger, an official, a shopkeeper you've never met. It can come across as overly familiar or even disrespectful, the way clapping a stranger on the back might feel in English.
The reverse error — using vous when tu would be fine — is far milder. At worst it sounds a touch formal or distant, and among friends it might get a gentle Tu peux me tutoyer ! ("You can use tu with me!"). Since over-formality is the safer mistake, when unsure, use vous. As a learner, you get extra grace here: native speakers know the tu/vous distinction is genuinely hard for foreigners and rarely hold a slip against you.
Quick reference
Situation | Tu or Vous |
|---|---|
A close friend | tu |
Your grandmother | tu (in most families) |
A stranger on the street | vous |
A waiter or shopkeeper | vous |
A child | tu |
Your new boss | vous (until invited otherwise) |
Two friends at once | vous (plural) |
A group of anyone | vous (plural) |
Frequently Asked Questions
What's the difference between tu and vous in French? Tu is the informal, singular "you," used with friends, family, children, and peers. Vous is both the formal singular "you" (for strangers, elders, and authority figures) and the plural "you" for addressing more than one person.
When in doubt, should I use tu or vous? Use vous. It's the respectful, safe default with any single adult you don't know well, and no one is offended by it. Over-formality is a much milder mistake than being too familiar.
Is it rude to use tu with the wrong person? It can be. Using tu with an older stranger, an official, or someone in a service role can sound overly familiar or disrespectful. As a learner you'll usually be forgiven, but defaulting to vous avoids the problem entirely.
Do you always use vous for groups? Yes. Whenever you address two or more people, it's vous, even if you'd use tu with each of them individually. The plural role of vous has nothing to do with formality.
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