5 letter words:
kotow12,
4 letter words:
zoic15,
wick13,
cook10,
tick10,
koto8,
took8,
twit7,
coot6,
otic6,
otto4,
toit4,
toot4,
3 letter words:
wiz15,
coz14,
zit12,
zoo12,
wok10,
ick9,
cow8,
kit7,
koi7,
tow6,
two6,
wit6,
woo6,
wot6,
coo5,
cot5,
tic5,
oot3,
tit3,
too3,
tot3,
2 letter words:
ki6,
ow5,
wo5,
it2,
oi2,
ti2,
to2,