5 letter words:
kazoo18,
wazoo17,
karoo9,
4 letter words:
razz22,
orzo13,
kaka12,
kook12,
wark11,
work11,
arak8,
kora8,
okra8,
rook8,
3 letter words:
azo12,
zoa12,
zoo12,
wok10,
ark7,
koa7,
kor7,
oak7,
oka7,
awa6,
raw6,
row6,
war6,
woo6,
oar3,
ora3,
2 letter words:
za11,
ka6,
aw5,
ow5,
wo5,
aa2,
ar2,
or2,