5 letter words:
spume9,
menus7,
neums7,
4 letter words:
sump8,
umps8,
emus6,
menu6,
muns6,
muse6,
neum6,
pens6,
puns6,
spue6,
spun6,
supe6,
3 letter words:
ump7,
ems5,
emu5,
men5,
mun5,
mus5,
pen5,
pes5,
pun5,
pus5,
sum5,
sup5,
ups5,
ens3,
nus3,
sen3,
sue3,
sun3,
uns3,
use3,
2 letter words:
em4,
me4,
mu4,
pe4,
um4,
up4,
en2,
es2,
ne2,
nu2,
un2,
us2,