cavalry vs horse

cavalry and horse both are nouns.

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

As nouns, cavalry and horse are synonyms defined as:

Other synonyms of cavalry include horse cavalry.

cavalry (noun)	horse (noun)
a highly mobile army unit	solid-hoofed herbivorous quadruped domesticated since prehistoric times
troops trained to fight on horseback	a chessman shaped to resemble the head of a horse; can move two squares horizontally and one vertically (or vice versa)
	a framework for holding wood that is being sawed
	a padded gymnastic apparatus on legs
	troops trained to fight on horseback

cavalry (verb)	horse (verb)
	provide with a horse or horses