7 letter words:
innings8,
sinning8,
sunning8,
6 letter words:
inning7,
5 letter words:
suing6,
using6,
4 letter words:
gins5,
gnus5,
guns5,
sign5,
sing5,
snug5,
sung5,
inns4,
nisi4,
nuns4,
sunn4,
3 letter words:
gin4,
gnu4,
gun4,
inn3,
ins3,
nun3,
nus3,
sin3,
sun3,
uns3,
2 letter words:
in2,
is2,
nu2,
si2,
un2,
us2,