ban block constrain enjoin forbid freeze halt hinder impede inhibit outlaw preclude prevent proscribe restrain restrict rule out cool cork debar disallow forfend hamper interdict kill nix obstruct spike stymie taboo veto bottle up box in bring to screeching halt gridlock hang up hold up jam up keep lid on lock up pass on put a lock on put a stopper in put chill on put down put half nelson on shut out throw cold water on tie up zing