burping vs burp

burping and burp both are nouns.

Word	Noun	Adjective	Verb	Adverb
burping	Yes	No	No	No
burp	Yes	No	Yes	No

As nouns, burping and burp are synonyms defined as:

burping and burp: a reflex that expels gas noisily from the stomach through the mouth

Other synonyms of burping include belch, belching, eructation.

burping (noun)	burp (noun)
a reflex that expels gas noisily from the stomach through the mouth	a reflex that expels gas noisily from the stomach through the mouth

burping (verb)	burp (verb)
	expel gas from the stomach