6 letter words:
busman10,
subman10,
5 letter words:
numbs9,
bunas7,
manus7,
4 letter words:
bams8,
bums8,
numb8,
amus6,
bans6,
buna6,
buns6,
mans6,
masu6,
maun6,
mnas6,
muns6,
nabs6,
nams6,
namu6,
nubs6,
snab6,
snub6,
suba6,
anus4,
3 letter words:
bam7,
bum7,
abs5,
amu5,
ban5,
bas5,
bun5,
bus5,
man5,
mas5,
mna5,
mun5,
mus5,
nab5,
nam5,
nub5,
sab5,
sam5,
sma5,
sub5,
sum5,
nas3,
nus3,
san3,
sau3,
sun3,
uns3,
2 letter words:
ab4,
am4,
ba4,
ma4,
mu4,
um4,
an2,
as2,
na2,
nu2,
un2,
us2,