fluke (fish), fluke (of anchor), fluke (slang word).
fold (wrap), fold (of sheep), foaled.
four, fore, for.
forego, forgo, and other compounds.
fourth, forth.
foil (s.), foil (v.), foil (fencer's).
fray (ravel), fray (combat).
fret (eat away), fret (adorn), fret (on lute).
freeze, frieze (archt.), frieze (cloth), frees (fr. free).
gamble, gambol,