trip wire

trip·wire

uncommon

noun

1.

a small military force that serves as a first line of defense; if they become engaged in hostilities it will trigger the intervention of stronger military forces

Synonyms

2.

a wire stretched close to the ground that activates something (a trap or camera or weapon) when tripped over

Synonyms

trip line trip out trip the light fantastic trip the light fantastic toe trip up triquetral triquetral bone triquetrous leek trireme trisaccharide

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