1a long, narrow ditch:dig a trench around the perimeter of the fire
a long, narrow ditch dug by troops to provide a place of shelter from enemy fire.
(trenches) a connected system of long, narrow ditches forming an army’s line.
(the trenches) the battlefields of northern France and Belgium in the First World War:the slaughter in the trenches created a new cynicism
2 (also ocean trench) a long, narrow, deep depression in the ocean bed, typically one running parallel to a plate boundary and marking a subduction zone: [in place names]:the Marianas Trench
3a trench coat.
ზმნა
Universal
1 [with object] dig a trench or trenches in (the ground):she trenched the terrace to a depth of 6 feet
turn over the earth of (a field or garden) by digging a succession of adjoining ditches.
2 [no object] (trench on/upon) archaic border closely on; encroach on:this would surely trench very far on the dignity and liberty of citizens
