F Meaning of F in English abbr. (also F.) 1 Fahrenheit. 2 farad(s). 3 female. 4 fine (pencil-lead). 5 Biol. filial generation (as F [ 1 ] for the first filial generation, F [ 2 ] for the second, etc.). Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012