Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “B”

B

noun  /bi/ us  

B noun (LETTER)

[C] (plural B’s, Bs, b’s or bs) (also b) the second letter of the English alphabet

B noun (MUSICAL NOTE)

music [C/U] (plural B’s or Bs) in Western music, the seventh note in the scale (= series of notes) that begins on the note C, or a set of notes based on this note

B noun (MARK)

[C] (plural B’s or Bs) a mark that means very good, given to something of satisfactory quality, esp. school work: Mrs. Madden gave me a B on my essay for English.
(Definition of B from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of B?
Add Cambridge dictionaries to your browser to your website

Definitions of “B” in other dictionaries

Word of the Day

scrumpy

an alcoholic drink made from apples

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More