fireproof
flagstaff
flameproof
fluff
flyleaf
foodstuff
foolproof
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.
falloff
Fireproof Foolproof
fernando?
fervent
Firehose
Gandalf
Frown
fishes
forsho
fine wine
fizz, fuzz