crenellation vs fort

crenellation and fort both are nouns.

Word	Noun	Adjective	Verb	Adverb
crenellation	Yes	No	No	No
fort	Yes	No	Yes	No

crenellation (noun)	fort (noun)
the action of constructing ramparts with gaps for firing guns or arrows	a fortified defensive structure
a rampart built around the top of a castle with regular gaps for firing arrows or guns	a fortified military post where troops are stationed

crenellation (verb)	fort (verb)
	station (troops) in a fort
	enclose by or as if by a fortification
	gather in, or as if in, a fort, as for protection or defense