Oz (like The Wizard of Oz), Iz (a name? dunno if it will count)
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.
Razzmatazz.
razzmatazz
pizzazz
blitz
jazz
centihertz is one
hpdgz
Jazz , razz
zoa
Luz
Izod