vomit up vs be sick

vomit up and be sick both are verbs.

Word	Noun	Adjective	Verb	Adverb
vomit up	No	No	Yes	No
be sick	No	No	Yes	No

As verbs, vomit up and be sick are synonyms defined as:

vomit up and be sick: eject the contents of the stomach through the mouth

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

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