Definitions
1.verb(usually followed by upon) To invade, especially with regard to the rights or the exclusive authority of another; to encroach.
2.verb(infantry) To excavate an elongated pit for protection of soldiers and or equipment, usually perpendicular to the line of sight toward the enemy.
3.verbTo excavate an elongated and often narrow pit.
4.verbTo have direction; to aim or tend.
5.verbTo cut; to form or shape by cutting; to make by incision, hewing, etc.
6.verbTo cut furrows or ditches in."to trench land for the purpose of draining it"
7.verbTo dig or cultivate very deeply, usually by digging parallel contiguous trenches in succession, filling each from the next."to trench a garden for certain crops"
8.nounThe excavation of a trench.
9.adjectiveTrenchant