Real Dictionary

B
B or b is used as an abbreviation for words beginning with b, for example 'born'.
variable noun: B is the second letter of the English alphabet.
variable noun: If you get a B as a mark for a piece of work or in an exam, your work is good.
variable noun: In music, B is the seventh note in the scale of C major.

b in American English
abbreviation: bar; bars
noun: the second letter of the English alphabet, a consonant

B in American English 1
a blood type
the second letter of the English alphabet: from the Greek beta, a borrowing from the Phoenician
abbreviation: bishop

B in American English 2
bachelor
bar(s)
symbol: the second in order or in a series

B in American English 3
boron

b in British English
noun: the second letter and first consonant of the modern English alphabet
symbol for
symbol for: a note having a frequency of 493.88 hertz (B above middle C) or this value multiplied or divided by any power of 2; the seventh note of the scale of C major

B- in American English
prefix: bomber

B- in British English
abbreviation for: bomber

b. in American English
abbreviation: bachelor

b. in British English
abbreviation for: (on maps, etc) bay
abbreviation for: born