Origin of trench

1350–1400; Middle English trenche path made by cutting < Old French: act of cutting, a cut, derivative of trenchier to cut < Vulgar Latin *trincāre, for Latin truncāre to lop; see truncate


sub·trench, nounun·trenched, adjective

Definition for trench (2 of 2)

[ trench ]
/ trɛntʃ /


Richard Chen·e·vix [shen-uh-vee] /ˈʃɛn ə vi/,1807–86, English clergyman and scholar, born in Ireland.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for trench

British Dictionary definitions for trench

/ (trɛntʃ) /


a deep ditch or furrow
a ditch dug as a fortification, having a parapet of the excavated earth


to make a trench in (a place)
(tr) to fortify with a trench or trenches
to slash or be slashed
(intr; foll by on or upon) to encroach or verge
See also trenches

Word Origin for trench

C14: from Old French trenche something cut, from trenchier to cut, from Latin truncāre to cut off
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for trench

[ trĕnch ]

A long, steep-sided valley on the ocean floor. Trenches form when one tectonic plate slides beneath another plate at a subduction zone. The Marianas Trench, located in the western Pacific east of the Philippines, is the deepest known trench (10,924 m or 35,831 ft) and the deepest area in the ocean.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.