A person or organisation with a legitimate interest in a given situation, action or enterprise.
A person holding the stakes of bettors, with the responsibility of delivering the pot to the winner of the bet.
A person filing an interpleader action, such as a garnishee or trustee, who acknowledges possession of property that is owed to one or more of several other claimants.
An escrow agent or custodian.
That which is undertaken; any business, work, or project which a person engages in, or attempts to perform; an enterprise.
A promise or pledge; a guarantee.
The business of an undertaker, or the management of funerals.
The act of one who undertakes (in either sense).