animal, bear, mouse (usually mousetrap), etc.
radar (BrE), speed
Slow down—there are speed traps along this stretch of road.

be caught in, get caught in
free sth from
The fox had managed to free itself from the trap.

lay, set, set up
bait
The traps are traditionally baited with cheese.

hidden, obvious
potential
booby
deadly, death
The overhead cable is a potential death trap for birds.

fire
This building is a fire trap.

debt, poverty
liquidity (business, esp. AmE)
sand (in golf)

lay, set, set up
spring
lure sb into
be caught in, fall into, get caught in, walk into
It is easy to fall into the trap of taking out a loan you cannot afford.

avoid, escape