z'n

Determiner

 * 1)  Contracted form of zijn.

Usage notes

 * This contracted form is seen chiefly in informal writing. Otherwise the full form is written out even though the pronunciation is that of z’n.
 * However, the spelling z’n is used in formal writing in a few fixed expressions, such as drieën (“involving a group of three people”), or  (“at most”). In these phrases, z’n does not have the meaning of an actual possessive adjective.

Etymology
From (originally a reflexive form), from, from , ultimately a form of the reflexive pronoun.

Pronoun

 * 1)  his, its