Definition from Wiktionary, the free dictionary
- (neologism) them (singular). Gender-neutral third-person singular accusative (object) pronoun, coordinate with him and her.
zir (not comparable)
- (neologism) Belonging to zir, their (singular). Gender-neutral third-person singular possessive adjective, coordinate with his and her.
2002, Calderwood, Lynsey, Cracked: Recovering After Traumatic Brain Injury, Jessica Kingsley Publishers, ISBN 978-1-84642-174-7, page 155:
- … just when it seemed like zie was beginning to get a handle on zir teapot and form normal relationships – although one could hardly call zir twice-weekly sexual encounters with the March Hare ‘normal’ …
Used with ze (“gender-neutral subject, coordinate to he/she”).