Definition of BB
1 : a shot pellet 0.18 inch in diameter for use in a shotgun cartridge
2 : a shot pellet 0.175 inch in diameter for use in an air gun
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1832
First Known Use of bb
1832
2
BB
abbreviation
Definition of BB
1 bachelor of business
2 ball bearing
3 base on balls
4 blue book
5 B'nai B'rith
BB Defined for English Language Learners
BB
play
noun
Definition of BB for English Language Learners
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: a small metal ball that is fired from a BB gun
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Spanish Central: Translation of BB Nglish: Translation of BB for Spanish speakers
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