7 letter words:
chachka21,
6 letter words:
cancha13,
concha13,
choana11,
5 letter words:
chock16,
knack15,
knock15,
acock13,
coach12,
conch12,
ancho10,
nacho10,
cacao9,
4 letter words:
hack13,
hock13,
cock12,
kaka12,
konk12,
ankh11,
hank11,
honk11,
khan11,
conk10,
haha10,
nock10,
chao9,
chon9,
caca8,
coca8,
kana8,
kaon8,
koan8,
anoa4,
3 letter words:
hah9,
koa7,
oak7,
oka7,
aah6,
aha6,
hao6,
hon6,
nah6,
noh6,
can5,
con5,
oca5,
ana3,
2 letter words:
ka6,
ah5,
ha5,
ho5,
oh5,
aa2,
an2,
na2,
no2,
on2,