5 letter words:
abbot9,
4 letter words:
baht9,
bath9,
both9,
oath7,
boat6,
bota6,
3 letter words:
bah8,
hob8,
bob7,
hao6,
hat6,
hot6,
tho6,
abo5,
bat5,
boa5,
bot5,
oba5,
tab5,
oat3,
tao3,
2 letter words:
ah5,
ha5,
ho5,
oh5,
ab4,
ba4,
bo4,
at2,
ta2,
to2,