"belch" in the noun sense
1. belch, belching, burp, burping, eructation
a reflex that expels gas noisily from the stomach through the mouth
"belch" in the verb sense
1. burp, bubble, belch, eruct
expel gas from the stomach
"Please don't burp at the table"
2. erupt, belch, extravasate
become active and spew forth lava and rocks
"Vesuvius erupts once in a while"
Source: WordNet® (An amazing lexical database of English)
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