她的 (tā de) is a possessive pronoun meaning 'her' in English. It consists of the third-person singular feminine pronoun 她 (tā), meaning 'she', combined with the possessive particle 的 (de), which links a possessor to the thing possessed. Unlike English, Chinese does not change the form of the pronoun based on grammatical role — 她 always means 'she', and adding 的 transforms it into 'her' when indicating ownership or association.

This phrase is used before nouns to show that something belongs to or is associated with a female person previously mentioned or understood from context. It appears frequently in everyday speech and writing — for example, when talking about someone’s belongings, family members, opinions, or actions. Note that 的 is pronounced with a neutral tone (de), never as dē or dě, and is never written with tone marks in this grammatical function.