7 letter words:
munnion9,
5 letter words:
onium7,
ninon5,
union5,
4 letter words:
mino6,
muni6,
muon6,
noni4,
noun4,
3 letter words:
moi5,
mon5,
mou5,
mun5,
nim5,
nom5,
inn3,
ion3,
non3,
nun3,
uni3,
2 letter words:
mi4,
mo4,
mu4,
om4,
um4,
in2,
io2,
no2,
nu2,
oi2,
on2,
ou2,
un2,
