adj.
Pronunciation: th ə r, ' th er
Function: adjective
Etymology: Middle English, from their, pronoun, from Old Norse theirra, genitive plural demonstrative & personal pronoun; akin to Old English thæt that
Date: 13th century
1 : of or relating to them or themselves especially as possessors, agents, or objects of an action < their furniture> < their verses> < their being seen>
2 : his or her : HIS , HER , ITS ― used with an indefinite third person singular antecedent <anyone in their senses ― W. H. Auden>
usage see THEY