Learn how to say Tripwire correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word tripwire:
a wire stretched close to the ground, working a trap, explosion, or alarm when disturbed and serving to detect or prevent people or animals entering an area:
he brushed some leaves aside to reveal a small tripwire stretched between two trees
a comparatively weak military force employed as a first line of defence, engagement with which will trigger the intervention of stronger forces:
if these peacekeeping efforts fail, they should have the function of a tripwire
the placing of tripwire forces on disputed borders