Nouns

(n)trapa device in which something (usually an animal) can be caught and penned
(n)trapdrain consisting of a U-shaped section of drainpipe that holds liquid and so prevents a return flow of sewer gas
(n)trap, snaresomething (often something deceptively attractive) that catches you unawares“the exam was full of trap questions”, “it was all a snare and delusion”
(n)trapa device to hurl clay pigeons into the air for trapshooters
(n)ambush, ambuscade, lying in wait, trapthe act of concealing yourself and lying in wait to attack by surprise
(n)trap, cakehole, hole, maw, yap, gobinformal terms for the mouth
(n)trapa light two-wheeled carriage
(n)bunker, sand trap, trapa hazard on a golf course

Verbs

(v)trap, pin downplace in a confining or embarrassing position“He was trapped in a difficult situation”
(v)trap, entrap, snare, ensnare, trammelcatch in or as if in a trap“The men trap foxes”
(v)traphold or catch as if in a trap“The gaps between the teeth trap food particles”
(v)trap, pin, immobilize, immobiliseto hold fast or prevent from moving“The child was pinned under the fallen tree”
(v)trapto sell marijuana on a street corner