Franz
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.
zeefe
fizz, fuzz
allianz!
zarf zarf zarf
Allianz
Zarf. It's an ornamental metal cup-shaped holder.
Zebra
zirconia
Zebra
zenith
ZoologicalZeal