5 letter words:
fugio9,
grouf9,
guiro6,
4 letter words:
firk11,
fork11,
kufi11,
gouk9,
grok9,
figo8,
frig8,
frog8,
frug8,
koru8,
kuri8,
four7,
giro5,
gori5,
3 letter words:
kif10,
fig7,
fog7,
fug7,
gif7,
irk7,
kir7,
koi7,
kor7,
oik7,
ouk7,
rok7,
fir6,
for6,
fou6,
fro6,
fur6,
orf6,
rif6,
ufo6,
gio4,
gor4,
gur4,
rig4,
rug4,
our3,
2 letter words:
ki6,
ko6,
if5,
of5,
gi3,
go3,
gu3,
ug3,
io2,
oi2,
or2,
ou2,
ur2,