xyr UK /zɪə(ɹ)/US /zɪɹ/determiner 1pronoun 1 determiner1 •(nonstandard) Belonging to xe, their (singular). Gender-neutral third-person singular possessive adjective, coordinate with his and her.This is xyr book. pronoun1 •(nonstandard) The form of xe used after a preposition or as the object of a verb, coordinate with him and her.Give it to xyr.I wrote xyr an e-mail.