What is English word BB?

Definitions of BB

1. A type of pellet that can be shot from a BB gun.
2. bareback; without a condom
3. (electronics) Initialism of baseband.
4. Initialism of BlackBerry.
5. Initialism of basketball.
6. Initialism of baseball.
7. (computing) Initialism of bulletin board.
8. Initialism of ball bearing.
9. (baseball) A walk; the statistic reporting the number of "bases on balls".
10. (US, navy) Abbreviation of battleship.
11. Initialism of Big Brother.
12. Initialism of Big Bang.
13. Initialism of Bangka-Belitung.
14. Alternative spelling of BB.
15. (Internet slang) Abbreviation of baby.