6 letter words:
unfair9,
5 letter words:
furan8,
infra8,
nairu5,
4 letter words:
fain7,
fair7,
faun7,
faur7,
fiar7,
firn7,
frau7,
naif7,
airn4,
rain4,
rani4,
raun4,
ruin4,
unai4,
3 letter words:
arf6,
auf6,
fan6,
far6,
fin6,
fir6,
fra6,
fun6,
fur6,
rif6,
ain3,
air3,
ani3,
nur3,
rai3,
ran3,
ria3,
rin3,
run3,
uni3,
urn3,
2 letter words:
fa5,
if5,
ai2,
an2,
ar2,
in2,
na2,
nu2,
un2,
ur2,
