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B

noun
     
Related topics: Letters and punctuation
B , b plural B's, b's
1SLA [uncountable and countable] the second letter of the English alphabet
2 [uncountable and countable] the seventh note in the musical scale of C major or the musical key based on this note
3 [countable] a mark given to a student's work to show that it is good but not excellent:
I got a B in history.
4 [uncountable] used to refer in a short way to one of two different things or people. You can call the first one A.:
the advantages and disadvantages of choosing product A or B

➔ plan B

at plan1 (6)
5

B4509/B1049 etc

the name of a road in Britain that is smaller than an A-road
6 [uncountable] a common type of blood

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