English

Noun

trench knife ‎(plural trench knives)

1. A knife designed for use in hand-to-hand fighting in trenches, typically having a double-edged blade and a knuckleduster on the handle. [from 19th c.]
   • 1925, Ford Madox Ford, No More Parades, Penguin 2012 (Parade's End), p. 294:

     He desired to cut certain throats with a sharp trench-knife that he had.