to shut up in a pound or other enclosure, as a stray animal.

to confine within an enclosure or within limits

water impounded in a reservoir.

to seize and retain in custody of the law, as a document for evidence.

money, property, etc., that has been impounded

a sale of impounds by the police department.

verb

cage , coop up , enclose , fence in , hold , imprison , keep , pen , seize , shut in , take , accumulate , collect , confine , retain , store