Meaning of B in English

(LETTER) (plural B's or Bs), b (plural b's or bs) [noun] [C] - the 2nd letter of the English alphabetB and B is bed and breakfast.See at bed (FURNITURE).A B-movie is a cheaply made film, which in the past was shown before the main film in a cinema, and which is often not well written and contains bad acting.A B-side is the side of a single (= a record containing one song on each side) which does not contain the main song.

Cambridge English vocab.      Кембриджский английский словарь.