Their

ahd-5
  • adjective. Used as a modifier before a noun.
  • adjective. His, her, or its.
  • The Century Dictionary and Cyclopedia
  • See they.
  • the GNU version of the Collaborative International Dictionary of English
  • preposition. The possessive case of the personal pronoun they.
  • Wiktionary, Creative Commons Attribution/Share-Alike License
  • pronoun. Belonging to, from, of, or relating to, them.
  • pronoun. Belonging to someone of unspecified gender.