horse vs cavalry

horse and cavalry both are nouns.

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

As nouns, horse and cavalry are synonyms defined as:

Other synonyms of horse include horse cavalry.

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

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