Your is a possessive adjective that refers to something belonging to the person you are addressing. There are various synonyms for your such as yours, thy, thine, his, her, their, and its. Yours refers to something that belongs to the person you are addressing. Thy and thine are old-fashioned or poetic words for your, which are used in religious language or literature. His, her, and their are possessive adjectives that refer to something that belongs to a third person or group. Its is a possessive adjective that refers to something that belongs to an object or animal.