cram [crammed, cramming, crams](to press, force, or drive, particularly in filling, or in thrusting one thing into another) verb [UK: kræm] [US: ˈkræm]
swarm [swarmed, swarming, swarms](to fill a place as a swarm) verb [UK: swɔːm] [US: ˈswɔːrm]The cellar is swarming with mice. = El sótano está atestado de ratones.