burp vs belch

burp and belch both are nouns.

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

As nouns, burp and belch are synonyms defined as:

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

Other synonyms of burp include belching, burping, eructation.

As verbs, burp and belch are synonyms defined as:

Other synonyms of burp include bubble, eruct.

burp (noun)	belch (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

burp (verb)	belch (verb)
expel gas from the stomach	expel gas from the stomach
	become active and spew forth lava and rocks