Burp has 4 different meanings across 2 categories:
Noun · Verb
a reflex that expels gas noisily from the stomach through the mouth
A belch.
expel gas from the stomach
"Please don't burp at the table"
To emit a burp.
The word burp originated in American English as an onomatopoeia. It was created by imitating the sound of the bodily function itself.