1. Possessive of They.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• thets,
• theiri,
• thirsd,
• theoris,
• theries,
• theier,
• therd,
• thiss,
• otheers,
• theives,
• theise,
• thiird,
• uthers,
• thweir,
• thedes,
• thfis,
• theiry,
• thjis,
• theighs,
• theori

• thresh,
• Thyrse,
• thrice,
• Thersa,
• Thresa,
• The Irish.

The adjective form of the word "theirs" is "their".

The plural form of "theirs" is also "theirs".

The plural of the "theirs" can be the "theirs".

The singular form of "theirs" is "mine"

The singular of the "theirs" can be the "Her".

The singular of the "theirs" can be the "it".

The singular of the "theirs" can be the "His".