5 letter words:
novas8,
4 letter words:
avos7,
nova7,
vans7,
abos6,
bans6,
boas6,
nabs6,
nobs6,
obas6,
snob6,
soba6,
naos4,
3 letter words:
avo6,
ova6,
van6,
vas6,
abo5,
abs5,
ban5,
bas5,
boa5,
bos5,
nab5,
nob5,
oba5,
sab5,
sob5,
nos3,
ons3,
son3,
2 letter words:
ab4,
ba4,
bo4,
an2,
as2,
na2,
no2,
on2,
os2,
so2,