/ bɜːp; NAmE bɜːrp/ verb ( informal )
1.
[ v ] to let out air from the stomach through the mouth, making a noise
SYN belch
2.
[ vn ] to make a baby bring up air from the stomach, especially by rubbing or patting its back
► burp noun
••
WORD ORIGIN
1930s (originally US): imitative.