"Its" is a possessive pronoun used to denote ownership or belonging of something. Synonyms for "its" are words that can be used to replace it to convey the same meaning. Some common synonyms for "its" include the possessive pronouns "her", "his", "their" and "our". Other possible synonyms include "belonging to", "associated with", "pertaining to", and "related to". It is important to choose the appropriate synonym depending on the context in which it is used, to ensure that the intended message is conveyed accurately and effectively.