SIZ

Siz is a Turkish pronoun used for the second person. In Turkish, sen is the informal singular you, while siz covers both formal address to a single person and any address to more than one person. Because Turkish often omits explicit subject pronouns, siz may appear with a verb form that already signals the person, but it is also used for emphasis or politeness in conversation.

The pronoun has several related forms that show possession and case: sizin means your, size means to you, and sizi means you as a direct object. Verbs that refer to the second person plural or formal you typically take the -siniz suffix, as in sizsiniz (you are), or forms like nasılsınız? (How are you?). Examples include Bu ev sizin mi? (Is this house yours?) and Siz nasılsınız? (How are you?).

In Turkish, pronouns are often optional because the verb conjugation encodes the person. Siz functions both as an independent pronoun and as a marker of polite or plural address. While it shares a common function with similar second-person plural forms in other Turkic languages, its precise use—formality, plurality, or emphasis—depends on context and intonation.

Beyond Turkish, siz appears in Azerbaijani and some Central Asian Turkic languages with a similar meaning of you (plural or formal). It is not a proper noun or a technical term in itself, but a basic pronoun central to second-person reference in these languages.