F

1.
abbr. Electr. faraday.
2.
n. (also f) (pl. Fs or F's)
1 the sixth letter of the alphabet.
2 Mus. the fourth note of the diatonic scale of C major.
3.
abbr. (also F.)
1 Fahrenheit.
2 farad(s).
3 female.
4 fine (pencil-lead).
5 Biol. filial generation (as F1 for the first filial generation, F2 for the second, etc.).
4.
symb. Chem. the element fluorine.