a ditch dug as a fortification having a parapet of the excavated earth
"The soldiers huddled behind the trench, using the piled-up dirt from its walls for protection against enemy fire."
a long steep-sided depression in the ocean floor
"Scientists used advanced sonar mapping to discover that the massive trench runs deeper than any previously recorded fault line on the ocean floor."
any long ditch cut in the ground
"The soldiers dug a deep trench to protect themselves from enemy fire during the storm."
A long, narrow ditch or hole dug in the ground.
"The soldiers huddled inside their muddy trench to stay safe from the enemy fire."
To invade, especially with regard to the rights or the exclusive authority of another; to encroach.
"The new regulations seem designed to trench on our traditional fishing rights rather than protect them."
A surname.
"The local history club invited Mr. Trench to speak about the town's wartime heritage."