5 letter words:
stoat5,
toast5,
4 letter words:
kats8,
koas8,
oaks8,
okas8,
skat8,
soak8,
task8,
oast4,
oats4,
stat4,
stoa4,
stot4,
taos4,
tats4,
tost4,
tots4,
3 letter words:
azo12,
zas12,
zoa12,
ask7,
kas7,
kat7,
koa7,
kos7,
oak7,
oka7,
ska7,
tsk7,
att3,
oat3,
sat3,
sot3,
tao3,
tas3,
tat3,
tot3,
2 letter words:
za11,
ka6,
as2,
at2,
os2,
so2,
ta2,
to2,