7 letter words:
forworn13,
6 letter words:
fiorin9,
5 letter words:
frown11,
frorn8,
4 letter words:
frow10,
woof10,
fini7,
fino7,
firn7,
foin7,
info7,
roof7,
wino7,
woon7,
worn7,
inro4,
iron4,
noir4,
nori4,
roin4,
roon4,
3 letter words:
wof9,
fin6,
fir6,
fon6,
for6,
fro6,
iwi6,
now6,
oof6,
orf6,
own6,
rif6,
row6,
win6,
won6,
woo6,
ion3,
noo3,
nor3,
ono3,
oon3,
oor3,
rin3,
roo3,
2 letter words:
if5,
of5,
ow5,
wo5,
in2,
io2,
no2,
oi2,
on2,
oo2,
or2,