9 letter words:
unroofing13,
7 letter words:
fourgon11,
roofing11,
grunion8,
6 letter words:
unroof9,
gonion7,
ronion6,
5 letter words:
forgo9,
fugio9,
fungi9,
fungo9,
gonif9,
gonof9,
giron6,
groin6,
guiro6,
ruing6,
unrig6,
inrun5,
inurn5,
onion5,
union5,
4 letter words:
frig8,
frog8,
frug8,
goof8,
fino7,
firn7,
foin7,
four7,
info7,
roof7,
girn5,
giro5,
goon5,
grin5,
ring5,
rung5,
inro4,
iron4,
noir4,
noon4,
nori4,
noun4,
ruin4,
3 letter words:
fig7,
fog7,
fug7,
fin6,
fir6,
fon6,
for6,
fou6,
fro6,
fun6,
fur6,
rif6,
gin4,
gnu4,
goo4,
gor4,
gun4,
nog4,
rig4,
rug4,
inn3,
ion3,
noo3,
nor3,
nun3,
ono3,
our3,
rin3,
run3,
urn3,
2 letter words:
if5,
of5,
go3,
in2,
no2,
nu2,
oi2,
on2,
or2,
un2,
