trench

definition: a ditch dug as a fortification having a parapet of the excavated earth
example:
speech part: noun
synonyms:
definition: any long ditch cut in the ground
example:
speech part: noun
synonyms:
definition: a long steep-sided depression in the ocean floor
example:
speech part: noun
synonyms: deep
definition: dig a trench or trenches
example: The National Guardsmen were sent out to trench
speech part: verb
synonyms:
definition: cut a trench in, as for drainage
example:
speech part: verb
synonyms: ditch
definition: set, plant, or bury in a trench
example: trench the fallen soldiers
speech part: verb
synonyms:
definition: cut or carve deeply into
example: letters trenched into the stone
speech part: verb
synonyms:
definition: fortify by surrounding with trenches
example: They trenched their military camp.
speech part: verb
synonyms:
definition: impinge or infringe upon
example:
speech part: verb
synonyms: entrench encroach impinge

How trench is being used?