trench

impinge or infringe upon

“This matter entrenches on other domains”

cut a trench in, as for drainage

“trench the fields”

a long steep-sided depression in the ocean floor

a ditch dug as a fortification having a parapet of the excavated earth

any long ditch cut in the ground

cut or carve deeply into

“letters trenched into the stone”

dig a trench or trenches

“The National Guardsmen were sent out to trench”

fortify by surrounding with trenches

“He trenched his military camp”

set, plant, or bury in a trench

“trench the fallen soldiers”