10 letter words:
nonbanking17,
7 letter words:
banking14,
bonking14,
nonbank13,
banning10,
6 letter words:
baking13,
nankin10,
bagnio9,
baning9,
boning9,
gabion9,
5 letter words:
boink11,
kiang10,
bingo8,
bogan8,
boing8,
goban8,
gonia6,
anion5,
ninon5,
4 letter words:
bank10,
bonk10,
knob10,
gink9,
king9,
akin8,
ikon8,
kain8,
kaon8,
kina8,
kino8,
koan8,
oink8,
bang7,
biog7,
bong7,
bani6,
obia6,
agin5,
agio5,
agon5,
gain5,
anon4,
naoi4,
nona4,
3 letter words:
kab9,
kob9,
ink7,
kin7,
koa7,
koi7,
oak7,
oka7,
bag6,
big6,
bog6,
gab6,
gib6,
gob6,
abo5,
ban5,
bin5,
bio5,
boa5,
nab5,
nib5,
nob5,
oba5,
obi5,
ago4,
gan4,
gin4,
goa4,
nag4,
nog4,
ain3,
ani3,
inn3,
ion3,
nan3,
2 letter words:
ka6,
ki6,
ab4,
ba4,
bi4,
bo4,
ag3,
go3,
ai2,
an2,
in2,
na2,
no2,
oi2,
on2,