definition of
trench

[1] #1 trench n. a ditch dug as a fortification having a parapet of the excavated earth. wn

[2] #2 trench v. [impinge, encroach, entrench] impinge or infringe upon; "This impinges on my rights as an individual"; "This matter entrenches on other domains". wn

[3] #3 trench n. [deep, oceanic abyss] a long steep-sided depression in the ocean floor. wn

[4] #4 trench v. fortify by surrounding with trenches; "He trenched his military camp". wn

[5] #5 trench n. any long ditch cut in the ground. wn