fortify vs trench

fortify is not a noun while trench is a noun.

Word	Noun	Adjective	Verb	Adverb
fortify	No	No	Yes	No
trench	Yes	No	Yes	No

As verbs, trench is a hyponym of fortify; that is, trench is a word with a more specific, narrower meaning than fortify:

Other hyponyms of fortify include embattle.

fortify (noun)	trench (noun)
	a ditch dug as a fortification having a parapet of the excavated earth
	any long ditch cut in the ground
	a long steep-sided depression in the ocean floor

fortify (verb)	trench (verb)
add alcohol to (beverages)	cut or carve deeply into
make strong or stronger	dig a trench or trenches
add nutrients to	cut a trench in, as for drainage
prepare oneself for a military confrontation	fortify by surrounding with trenches
enclose by or as if by a fortification	set, plant, or bury in a trench
	impinge or infringe upon