6 letter words:
unfirm11,
4 letter words:
firm9,
firn7,
muir6,
muni6,
rimu6,
ruin4,
3 letter words:
fum8,
fin6,
fir6,
fun6,
fur6,
rif6,
mir5,
mun5,
nim5,
rim5,
rum5,
nur3,
rin3,
run3,
uni3,
urn3,
2 letter words:
if5,
mi4,
mu4,
um4,
in2,
nu2,
un2,
ur2,
