of or relating to them or themselves especially as possessors, agents, or objects of an action Note: Do not confuse their, which has to do with what belongs to or is associated with them, with the words there and they're. There has meanings that mostly relate to a literal or abstract location ("moving away from there," "there it is," "a friend who's there for you"), while they're is a contraction of "they are" ("when they're ready").
his or her : his, her, its —used with an indefinite third person singular antecedent
of or relating to them or themselves