7 letter words:
bazooka22,
5 letter words:
cobza18,
kazoo18,
bazoo16,
choko14,
chook14,
kacha14,
aback13,
bacha12,
cohab12,
hooka12,
achoo10,
4 letter words:
zack19,
bozo15,
zobo15,
hack13,
hock13,
back12,
bock12,
bach11,
haka11,
hoka11,
hook11,
koha11,
boak10,
boko10,
book10,
cook10,
kobo10,
boho9,
booh9,
chao9,
coho9,
hobo9,
abac8,
caba8,
3 letter words:
zho15,
caz14,
coz14,
azo12,
zoa12,
zoo12,
bok9,
kab9,
kob9,
ach8,
bah8,
boh8,
cha8,
hob8,
hoc8,
och8,
aka7,
bac7,
cab7,
cob7,
koa7,
oak7,
oka7,
aah6,
aha6,
hao6,
hoa6,
hoo6,
oho6,
ooh6,
aba5,
abo5,
baa5,
boa5,
boo5,
caa5,
coo5,
oba5,
obo5,
oca5,
2 letter words:
za11,
zo11,
ch7,
ka6,
ko6,
ah5,
ha5,
ho5,
oh5,
ab4,
ba4,
bo4,
ob4,
aa2,
oo2,