7 letter words:
foining11,
6 letter words:
fining10,
5 letter words:
gonif9,
inion5,
4 letter words:
figo8,
fini7,
fino7,
foin7,
info7,
ginn5,
ingo5,
nong5,
noni4,
3 letter words:
fig7,
fog7,
gif7,
fin6,
fon6,
gin4,
gio4,
gon4,
nog4,
inn3,
ion3,
non3,
2 letter words:
if5,
of5,
gi3,
go3,
in2,
io2,
no2,
oi2,
on2,