sen vs siz: Familiarity and Respect

Modern English has just one word for "you," so we say it to a toddler, a stranger, and the president alike. Turkish keeps the older two-way split that English lost when thou died out: sen is the familiar "you," for people you are close to or equal with, and siz is the respectful "you," for people you should treat with distance — and it is also the plural "you (all)." Choosing between them is not a grammar detail you can fudge; it is a genuine social decision that the listener notices instantly. This page teaches the choice and the trap that comes with siz doing two jobs at once.

sen: the familiar "you"

Sen is singular and informal. You use it with close friends, family, children, animals, and people clearly your peers in a relaxed setting. It signals warmth, closeness, and equality. The verb and copula take the second-person singular endings to match.

Note that in everyday speech the pronoun sen is often dropped, because the verb ending already says "you (singular)": Nasılsın? on its own already means "How are you (informal)?" Turkish marks person on the verb, so the standalone pronoun is for emphasis or contrast (see the zero copula in the present for how nasıl-sın is built). You include sen when you want to stress you specifically.

siz: respect — and the plural

Siz is the respectful "you" for one person and the plural "you" for several. As a politeness form, you use it with strangers, people older than you, anyone senior at work, officials, shopkeepers serving you, and in any formal setting. It puts a respectful distance between you and the addressee. The verb and copula take the second-person plural endings — the same endings you'd use for an actual group.

Because siz covers both the polite singular and the plural, context tells you which is meant. If you are speaking to one older stranger, siz nasılsınız? is the polite singular ("how are you, sir/madam?"); if you are addressing a roomful of people, the same words are the plural ("how are you all?"). Turkish does not disambiguate this with a separate word — and that is exactly the point learners must absorb.

The default: start with siz

The single most useful rule for a beginner: with any adult you don't already know, start with siz. Choosing siz is never an error — at worst it is a touch formal among people who'd have been fine with sen. Choosing sen too early, by contrast, can feel pushy or disrespectful, especially toward someone older or in a position of authority. So the safe path is to begin formal and let the relationship loosen later.

The polite imperative Buyurun "go ahead / here you are / please" is itself the siz form of an invitation, and it is the everyday face of siz courtesy — heard from shopkeepers, hosts, and anyone offering you something. For the broader register picture of when siz is obligatory, see the formal siz.

Switching from siz to sen is a real event

In English we slide from formal to casual invisibly. In Turkish, moving from siz down to sen is a noticeable social step — it marks a relationship becoming closer, and it usually has to be agreed, not just assumed. Often the more senior person initiates it, sometimes explicitly, with a phrase like Sen diyelim mi? "Shall we say sen?" or Sen diyebilir miyiz? "Can we use sen?" Until that switch happens, you stay on siz.

The takeaway: don't unilaterally jump to sen with someone who has been addressing you as siz, especially if they are older or more senior. Wait for the invitation, or offer it yourself only when the closeness clearly warrants it. Getting this wrong is one of the most visible social missteps a learner can make — it lands as either over-familiar or, if you stay too formal with a new friend, oddly stiff. The wider system of address and how it interacts with titles is covered on the address terms and politeness overview pages.

A note on spelling

Unlike German, which capitalises the polite Sie mid-sentence, Turkish does not capitalise siz. It is an ordinary pronoun, written lowercase wherever it falls in the sentence: Siz nasılsınız? at the start (capital only because it begins the sentence), but …sizinle… and …siz de… lowercase in the middle. There is no honorific capital.

Common mistakes

Defaulting to sen with strangers, elders, or superiors is the classic learner error. Start on siz.

When you use siz, the verb and copula must carry the plural ending (-sınız, -siniz), not the singular -sın.

Siz to a single respected person is the polite singular. Don't assume it always signals a group.

Don't unilaterally drop to sen with someone senior. Wait for the explicit invitation.

Siz is lowercase mid-sentence. There is no German-style honorific capital in Turkish.

Key takeaways

• sen = singular, informal — for intimates, peers, children; takes the -sın verb endings.
• siz = respectful "you" to one person and the plural "you all"; takes the -sınız endings; context decides which.
• Default to siz with any new adult — it's never wrong, only sometimes a little formal.
• Moving siz → sen is a social event, usually proposed out loud (Sen diyelim mi?) and often by the senior person — don't do it unilaterally.
• Siz is not capitalised mid-sentence (unlike German Sie).