Tower of London vs fort

Tower of London and fort both are nouns.

Word	Noun	Adjective	Verb	Adverb
Tower of London	Yes	No	No	No
fort	Yes	No	Yes	No

Tower of London (noun)	fort (noun)
a fortress in London on the Thames; used as a palace and a state prison and now as a museum containing the crown jewels	a fortified defensive structure
	a fortified military post where troops are stationed

Tower of London (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