To cut furrows or ditches in.
To dig or cultivate very deeply, usually by digging parallel contiguous trenches in succession, filling each from the next.
To excavate an elongated pit for protection of soldiers and or equipment, usually perpendicular to the line of sight toward the enemy.
To have direction; to aim or tend.
To cut; to form or shape by cutting; to make by incision, hewing, etc.
To excavate an elongated and often narrow pit.
To invade, especially with regard to the rights or the exclusive authority of another; to encroach.
A long, narrow ditch or hole dug in the ground.
A narrow excavation as used in warfare, as a cover for besieging or emplaced forces.
A pit, usually rectangular with smooth walls and floor, excavated during an archaeological investigation.
A trench coat.
To perforate with a trephine.
To use a trephine during surgery.
A surgical instrument with a cylindrical blade used to remove a circular section of tissue, f.e. bone or cornea; a trepan.