5 letter words:
furan8,
4 letter words:
fawn10,
faun7,
faur7,
frau7,
furr7,
rawn7,
warn7,
waur7,
nurr4,
raun4,
3 letter words:
faw9,
arf6,
auf6,
awn6,
fan6,
far6,
fra6,
fun6,
fur6,
naw6,
raw6,
wan6,
war6,
nur3,
ran3,
run3,
urn3,
2 letter words:
aw5,
fa5,
an2,
ar2,
na2,
nu2,
un2,
ur2,