horseback riding vs trot

horseback riding and trot both are nouns.

Word	Noun	Adjective	Verb	Adverb
horseback riding	Yes	No	No	No
trot	Yes	No	Yes	No

horseback riding (noun)	trot (noun)
travel by being carried on horseback	a slow pace of running
the sport of sitting on the back of a horse while controlling its movements	a gait faster than a walk; diagonally opposite legs strike the ground together
	a literal translation used in studying a foreign language (often used illicitly)

horseback riding (verb)	trot (verb)
	run at a moderately swift pace
	ride at a trot
	cause to trot