5 letter words:
biota7,
4 letter words:
wait7,
bait6,
boat6,
bota6,
obia6,
obit6,
iota4,
3 letter words:
bow8,
wab8,
taw6,
tow6,
twa6,
two6,
wat6,
wit6,
wot6,
abo5,
bat5,
bio5,
bit5,
boa5,
bot5,
oba5,
obi5,
tab5,
ait3,
oat3,
tao3,
2 letter words:
aw5,
ow5,
wo5,
ab4,
ba4,
bi4,
bo4,
ai2,
at2,
it2,
oi2,
ta2,
ti2,
to2,