Synonyms for Trap (same or very similar meaning)
WordNet sense 1 (something (often something deceptively attractive) that catches you unawares):
snare
WordNet sense 2 (informal terms for the mouth):
gob, hole, maw, yap, cakehole
WordNet sense 3 (a hazard on a golf course):
bunker, sand trap
WordNet sense 4 (catch in or as if in a trap):
ensnare, entrap, trammel
WordNet sense 5 (the act of concealing yourself and lying in wait to attack by surprise):
ambuscade, ambush, lying in wait
WordNet sense 6 (to hold fast or prevent from moving):
immobilize, pin, immobilise
From the ODE community, based on WordNet
add/edit