trap

to hold fast or prevent from moving

a light two-wheeled carriage

drain consisting of a U-shaped section of drainpipe that holds liquid and so prevents a return flow of sewer gas

hold or catch as if in a trap

“The gaps between the teeth trap food particles”

catch in or as if in a trap

“The men trap foxes”

something (often something deceptively attractive) that catches you unawares

“the exam was full of trap questions”

a hazard on a golf course

informal terms for the mouth

place in a confining or embarrassing position

“He was trapped in a difficult situation”

the act of concealing yourself and lying in wait to attack by surprise

a device in which something (usually an animal) can be caught and penned