Nouns

(n)heave, retchan involuntary spasm of ineffectual vomiting“a bad case of the heaves”

Verbs

(v)vomit, vomit up, purge, cast, sick, cat, be sick, disgorge, regorge, retch, puke, barf, spew, spue, chuck, upchuck, honk, regurgitate, throw upeject the contents of the stomach through the mouth“After drinking too much, the students vomited”, “He purged continuously”, “The patient regurgitated the food we gave him last night”
(v)gag, heave, retchmake an unsuccessful effort to vomit; strain to vomit