throw up vs vomit up

throw up and vomit up both are verbs.

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

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

throw up and vomit up: eject the contents of the stomach through the mouth

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

throw up (verb)	vomit up (verb)
eject the contents of the stomach through the mouth	eject the contents of the stomach through the mouth