burp vs regurgitate

To utter by burping 

To cause someone (such as a baby) to burp. 

To open (a container of fermenting substance) to allow the release of accumulated gas. 

To emit a burp. 

To throw up or vomit; to eject what has previously been swallowed. 

To cough up from the gut to feed its young, as an animal or bird does. 

To repeat verbatim. 

To be thrown or poured back; to rush or surge back.