deiner

Deiner is a German possessive pronoun meaning “yours.” It functions as an independent or predicate pronoun used to refer to something possessed by the person addressed, without repeating the noun.

In standard German, dein derives its independent pronoun form from the possessive determiner and is grouped with other independent possessive pronouns such as meiner, deiner, seiner, ihrer, unserer, eurer, ihrer. When used without a noun, these forms can act as substitutes for a noun phrase that has already been mentioned or is understood from context. In everyday speech, the shortened form deins is more common, while die form der and the choice of case can vary with grammatical function.

Usage examples are typically found in contexts where the noun is implied by discourse. A formal or literary tone might use structures like “Das ist deiner,” meaning “That is yours,” though in contemporary colloquial German people more often say “Das gehört dir” (That belongs to you) or “Das ist deins/dein Auto” when the noun is spoken or clear from context.

Beyond grammar, de n er can appear as a surname in German-speaking regions, though it is not widely documented as a given name. In onomastic discussions, it is treated as a family name in some cases, separate from its grammatical function in the language.

See also: German grammar, Personal pronouns, Possessive pronouns, German language usage.