Noun

trench [pl. trenches]
ditch [pl. ditches] , {mil.}
خندق {جيش}
dyke [pl. dykes]
bunker {mil.}
خندق {جيش}
fosse [pl. fosses]
dike [pl. dikes]
escarpment [pl. escarpments]
sap [pl. saps]
chasm [pl. chasms]
retrenchment [pl. retrenchments] , {mil.}
خندق {جيش}

Verb

to trench [ trenched ; trenched ]
to retrench {mil.}