No English language word begins with the letters fn.
fine wine
ConFusEd...
Famished is a word for extremely hungry that starts with the letter F.
A five letter word, second letter F is after or often.
A five (5) letter word that starts with Z and ends with F, there is none recorded. However, there is a word that starts with Z and ends with F. The word is a four (4) letter word: zarf, (noun) a metal holder for a coffee cup.
funny
Forest
Feathers
Facebook :D well I heard that's the second (maybe)
falloff
Fireproof Foolproof
fuss