vomit up vs honk

vomit up is not a noun while honk is a noun.

Word	Noun	Adjective	Verb	Adverb
vomit up	No	No	Yes	No
honk	Yes	No	Yes	No

As verbs, vomit up and honk are synonyms defined as:

Other synonyms of vomit up include barf, be sick, cast, cat, chuck, disgorge, puke, purge, regorge, regurgitate, retch, sick, spew, spue, throw up, upchuck, vomit.

vomit up (noun)	honk (noun)
	the cry of a goose (or any sound resembling this)

vomit up (verb)	honk (verb)
eject the contents of the stomach through the mouth	eject the contents of the stomach through the mouth
	cry like a goose
	use the horn of a car
	make a strident noise