9 letter words:
countback19,
7 letter words:
cutback17,
backout15,
cutbank15,
outback15,
account11,
6 letter words:
uncock14,
untack12,
cobnut10,
noctua8,
toucan8,
5 letter words:
acock13,
bucko13,
bacco11,
bocca11,
bunko11,
caboc11,
koban11,
konbu11,
bacon9,
banco9,
bunco9,
coact9,
knout9,
otaku9,
tonka9,
about7,
acton7,
bantu7,
baton7,
canto7,
cotan7,
count7,
octan7,
tabun7,
tauon5,
4 letter words:
back12,
bock12,
buck12,
cock12,
bank10,
bauk10,
boak10,
bonk10,
bouk10,
bunk10,
cauk10,
conk10,
knob10,
knub10,
nabk10,
nock10,
tack10,
tock10,
tuck10,
atok8,
banc8,
coca8,
kant8,
kaon8,
knot8,
knut8,
koan8,
kuna8,
kuta8,
okta8,
tank8,
tonk8,
touk8,
abut6,
atoc6,
bant6,
boat6,
bona6,
bota6,
boun6,
bout6,
buat6,
buna6,
bunt6,
cant6,
coat6,
cunt6,
octa6,
tabu6,
taco6,
tuba6,
unco6,
aunt4,
auto4,
nota4,
nout4,
toun4,
tuan4,
tuna4,
unto4,
3 letter words:
bok9,
kab9,
kob9,
auk7,
bac7,
cab7,
cob7,
cub7,
kat7,
koa7,
kon7,
oak7,
oka7,
ouk7,
tak7,
abo5,
act5,
ban5,
bat5,
boa5,
bon5,
bot5,
bun5,
but5,
can5,
cat5,
con5,
cot5,
cut5,
nab5,
nob5,
nub5,
oba5,
oca5,
tab5,
toc5,
tub5,
ant3,
nat3,
not3,
nut3,
oat3,
out3,
tan3,
tao3,
tau3,
ton3,
tun3,
uta3,
2 letter words:
ka6,
ko6,
ab4,
ba4,
bo4,
ob4,
an2,
at2,
na2,
no2,
nu2,
on2,
ou2,
ta2,
to2,
un2,
ut2,