American English

Definition of F noun from the Oxford Advanced American Dictionary



    [countable, uncountable] (pl. Fs, F's
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  1. 1f (f's) the 6th letter of the English alphabet “Fox” begins with (an) F/“F.”
  2. 2(music) the fourth note in the scale of C major
  3. 3the lowest grade that a student can get for a course, test, or piece of work, showing that it is very bad and the student has failed He got an F inChemistry.
See the Oxford Advanced Learner's Dictionary entry: F