interest

A state of curiosity or concern about or attention to something.

Something, such as a quality, subject, or activity, that evokes this mental state.

Regard for one’s own benefit or advantage; self-interest.

A right, claim, or legal share.

Something in which such a right, claim, or share is held.

A person or group of persons holding such a right, claim, or share.

Involvement with or participation in something.