5 letter words:
catch12,
coach12,
cacao9,
coact9,
4 letter words:
chao9,
chat9,
tach9,
caca8,
coca8,
oath7,
acta6,
coat6,
taco6,
3 letter words:
aah6,
aha6,
hao6,
hat6,
hot6,
tho6,
act5,
cat5,
cot5,
oca5,
oat3,
tao3,
2 letter words:
ah5,
ha5,
ho5,
oh5,
aa2,
at2,
ta2,
to2,