trap
n//tɹæp//fälla, fallucka, vattenlås
A machine or other device designed to catch (and sometimes kill) animals, either by holding them in a container, or by catching hold of part of the body.
A trick or arrangement designed to catch someone in a more general sense; a snare.
A covering over a hole or opening; a trapdoor.
A bend, sag, or other device in a waste-pipe arranged so that the liquid contents form a seal which prevents the escape of noxious gases, but permits the flow of liquids.