regurgitate vs upchuck

regurgitate and upchuck both are verbs.

Word	Noun	Adjective	Verb	Adverb
regurgitate	No	No	Yes	No
upchuck	No	No	Yes	No

As verbs, regurgitate and upchuck are synonyms defined as:

regurgitate and upchuck: eject the contents of the stomach through the mouth

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

regurgitate (verb)	upchuck (verb)
eject the contents of the stomach through the mouth	eject the contents of the stomach through the mouth
repeat after memorization
feed through the beak by regurgitating previously swallowed food
pour or rush back