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trench

trench /ˈtrɛntʃ/ noun
plural trenches
trench
/ˈtrɛntʃ/
noun
plural trenches
Britannica Dictionary definition of TRENCH
[count]
: a long, narrow hole that is dug in the ground : ditch
: a deep, narrow hole in the ground that is used as protection for soldiers usually plural
: a long, narrow hole in the ocean floor

the trenches

: a place or situation in which people do very difficult work