9 letter words:
bootblack19,
6 letter words:
bobcat12,
babool10,
cobalt10,
5 letter words:
black13,
block13,
kabob13,
cabob11,
cloak11,
abbot9,
baboo9,
bloat7,
cloot7,
octal7,
taboo7,
4 letter words:
back12,
bock12,
balk10,
book10,
calk10,
cobb10,
cook10,
kobo10,
lack10,
lock10,
tack10,
blab8,
blob8,
bloc8,
boob8,
kola8,
kolo8,
koto8,
look8,
talk8,
took8,
blat6,
blot6,
boat6,
bola6,
bolo6,
bolt6,
boot6,
bota6,
calo6,
clot6,
coal6,
coat6,
cola6,
colt6,
cool6,
coot6,
lobo6,
loca6,
loco6,
obol6,
taco6,
talc6,
alto4,
loot4,
lota4,
tola4,
tool4,
3 letter words:
kab9,
kob9,
bob7,
cab7,
cob7,
kat7,
koa7,
oak7,
oka7,
abo5,
act5,
alb5,
bal5,
bat5,
boa5,
boo5,
bot5,
cat5,
col5,
coo5,
cot5,
lab5,
lac5,
lob5,
oba5,
oca5,
tab5,
alt3,
lat3,
loo3,
lot3,
oat3,
oot3,
tao3,
too3,
2 letter words:
ka6,
ab4,
ba4,
bo4,
al2,
at2,
la2,
lo2,
ta2,
to2,