Pitfall and Trip wire

Pitfall noun - A danger or difficulty that is hidden or not easily recognized.

Trip wire and pitfall are semantically related In some cases you can use "Trip wire" instead a noun "Pitfall".

Trip wire noun - A wire stretched close to the ground that activates something (a trap or camera or weapon) when tripped over.

Pitfall and trip wire are semantically related in concealed trap topic. You can use "Pitfall" instead a noun phrase "Trip wire".