trip wire

noun

Definition of trip wire

1 : a low-placed concealed wire used especially in warfare to trip an enemy or trespasser and usually to trigger an alarm or explosive device when moved
2 : something (such as a small military force) intended to function like a trip wire (as to set a larger military force in motion)

Recent Examples of trip wire from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'trip wire.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of trip wire

1915


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