关押

关押	guān yā	to imprison / to lock up (in jail)
关	Guān	surname Guan
关	guān	mountain pass / to close; to shut; to turn off / to confine; to lock (sb) up; to shut (sb in a room, a bird in a cage etc) / to concern; to involve
押	yā	to mortgage / to pawn / to detain in custody / to escort and protect / (literary) to sign