5 letter words:
coign8,
cuing8,
incog8,
4 letter words:
cion6,
coin6,
coni6,
icon6,
unci6,
unco6,
ingo5,
3 letter words:
cig6,
cog6,
con5,
gin4,
gio4,
gnu4,
gon4,
gun4,
nog4,
ion3,
uni3,
2 letter words:
gi3,
go3,
gu3,
ug3,
in2,
io2,
no2,
nu2,
oi2,
on2,
ou2,
un2,