As a Pointing Sign: 1. Used to mean something is owned or possessed by the people the sign is directed towards or sweeps past. It excludes the signer and the person being addressed. It is usually signed immediately next to the noun sign for the thing that is owned. English = their. 2. Used to mean something is owned or possessed by the people the sign is directed towards or sweeps past. It excludes the signer and the person being addressed. Used alone without saying what is possessed if it is clear from context or someone has mentioned it before. English = theirs.