5 letter words:
kazoo18,
ozone14,
zonae14,
zoner14,
karoo9,
krona9,
krone9,
kroon9,
oaken9,
4 letter words:
zerk17,
zonk17,
azon13,
ooze13,
orzo13,
raze13,
zero13,
zoea13,
zona13,
zone13,
zoon13,
kane8,
kaon8,
karn8,
keno8,
kern8,
knar8,
koan8,
kora8,
kore8,
nark8,
nook8,
okra8,
rake8,
rank8,
rook8,
aeon4,
aero4,
earn4,
near4,
roan4,
3 letter words:
zek16,
azo12,
zoa12,
zoo12,
ark7,
kae7,
kea7,
ken7,
koa7,
kor7,
oak7,
oka7,
oke7,
ane3,
are3,
ear3,
eon3,
era3,
ern3,
nae3,
noo3,
nor3,
oar3,
one3,
ono3,
ora3,
ore3,
ran3,
roe3,
2 letter words:
za11,
ka6,
ae2,
an2,
ar2,
en2,
er2,
na2,
ne2,
no2,
oe2,
on2,
or2,
re2,