7 letter words:
tobacco13,
5 letter words:
coact9,
cocoa9,
taboo7,
4 letter words:
coca8,
coco8,
boat6,
boot6,
bota6,
coat6,
coot6,
taco6,
3 letter words:
cab7,
cob7,
abo5,
act5,
bat5,
boa5,
boo5,
bot5,
cat5,
coo5,
cot5,
oba5,
oca5,
tab5,
oat3,
oot3,
tao3,
too3,
2 letter words:
ab4,
ba4,
bo4,
at2,
ta2,
to2,