5 letter words:
knack15,
aback13,
4 letter words:
hack13,
back12,
kaka12,
ankh11,
bach11,
hank11,
khan11,
bank10,
kana8,
3 letter words:
kab9,
bah8,
cab7,
aah6,
aha6,
nah6,
aba5,
baa5,
ban5,
can5,
nab5,
ana3,
2 letter words:
ka6,
ah5,
ha5,
ab4,
ba4,
aa2,
an2,
na2,