()とし(あな)

おとしあな
noun
pitfall, trap, snare
abstract
1. pitfall, trap hole
A concealed hole in the ground designed to trap animals or people who step on it.
()とし(あな)()
To dig a pitfall trap.
The children were making a pitfall trap on the beach.
動物(どうぶつ)()とし(あな)はまって(うご)けなくなった
An animal fell into the trap and couldn't move.
2. pitfall, hidden danger, trap
A hidden risk, unexpected problem, or deceptive situation that catches someone off guard.
この契約(けいやく)()とし(あな)ある
This contract has a hidden pitfall.
Cheap properties often come with hidden catches.
Even when things look successful, you need to watch out for hidden pitfalls.

Compound of ()とす (to drop) + (あな) (hole). The figurative sense (hidden danger) is more common than the literal sense in everyday use.

Common patterns

Similar words

  • わな: trap, snare — can be physical or figurative
  • (おとし)いれる: to trap someone, to entrap
  • ()とし(あな) specifically implies something hidden that you don't notice until it's too late