trot vs horseback riding

trot and horseback riding both are nouns.

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

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

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