troop vs cavalry

troop and cavalry both are nouns.

Word	Noun	Adjective	Verb	Adverb
troop	Yes	No	Yes	No
cavalry	Yes	No	No	No

troop (noun)	cavalry (noun)
a group of soldiers	a highly mobile army unit
an orderly crowd	troops trained to fight on horseback
a unit of Girl or Boy Scouts
a cavalry unit corresponding to an infantry company

troop (verb)	cavalry (verb)
move or march as if in a crowd
march in a procession in a public place