(rare, nonstandard) That which belongs to zir, the possessive case of ze.

plural of zir

A large clay jug for storing water, common in Egypt and the Sudan since ancient times.

(rare, nonstandard) Gender-neutral third-person singular accusative (object) pronoun, equivalent to singular them and coordinate with him and her.

(rare, nonstandard) Belonging to zir, gender-neutral third-person singular possessive adjective, equivalent to singular their and coordinate with his and her.

(mineralogy) A trigonal-hexagonal scalenohedral mineral containing calcium, iron, manganese, oxygen, silicon, sodium, and zirconium.

(reflexive) zir; the gender-neutral object of a verb or preposition that also appears as the subject

(mineralogy) A brittle cream-coloured complex mineral.