Meaning of “trench” in the English Dictionary

british dictionary

"trench" in British English

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trenchnoun

uk /trentʃ/ us /trentʃ/

[ C ] a narrow hole that is dug into the ground:

A workman was killed when the sides of the trench he was working in collapsed.

[ C usually plural ] a deep hole dug by soldiers and used as a place from which they can attack the enemy while being hidden:

the trenches of the First World War
trench warfare
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(Definition of “trench” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"trench" in American English

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trenchnoun [ C ]

us /trentʃ/

a narrow channel dug into the ground:

I dug a trench around the tent to keep rain water from getting in.

earth science A trench is also a long, deep valley at the bottom of an ocean.

(Definition of “trench” from the Cambridge Academic Content Dictionary © Cambridge University Press)