BB

1 of 2

noun

ˈbē-(ˌ)bē

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

BB

2 of 2

abbreviation

1

bachelor of business

2

ball bearing

3

base on balls

4

blue book

5

B'nai B'rith

Word History

First Known Use

Noun

1832, in the meaning defined at sense 1

Time Traveler

The first known use of BB was in 1832

See more words from the same year

Cite this Entry

Style

“BB.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/BB. Accessed 24 Jul. 2025.

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Kids Definition

BB

noun

ˈbē-ˌbē

: a small round piece of shot

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