b (EN)

letter, adjective, symbol

letter “b”

1. the lowercase form of the letter "B"
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   The word "baby" starts with a lowercase "b".

adjective “b”

1. abbreviation of born
   John Smith, b. 1985, is a renowned author.

symbol “b”

1. Barn (the unit equal to 100 fm²)
   The cross-sectional area of the uranium nucleus was measured to be about 1.75 b.
2. a symbol for bit (the smallest unit of data)
   The transfer speed is 3 Mb per second.
3. flat (in music, a sign used to lower a note's pitch)
   In the sheet music, the note was Ab to indicate it should be played a half step lower below A.