6 letter words:
muffin14,
5 letter words:
fanum10,
4 letter words:
miff12,
muff12,
naff10,
fain7,
faun7,
naif7,
amin6,
main6,
maun6,
mina6,
muni6,
unai4,
3 letter words:
aff9,
iff9,
fan6,
fin6,
fun6,
aim5,
ami5,
amu5,
man5,
mun5,
nam5,
nim5,
ain3,
ani3,
2 letter words:
fa5,
if5,
am4,
ma4,
mi4,
mu4,
um4,
ai2,
an2,
in2,
na2,
nu2,
un2,