5 letter words:
cuing8,
incus7,
suing6,
using6,
4 letter words:
sync9,
guys8,
cigs7,
yins7,
unci6,
gins5,
gnus5,
guns5,
sign5,
sing5,
snug5,
sung5,
3 letter words:
icy8,
guy7,
cig6,
syn6,
yin6,
cis5,
sic5,
gin4,
gnu4,
gun4,
ins3,
nus3,
sin3,
sun3,
uns3,
2 letter words:
in2,
is2,
nu2,
si2,
un2,
us2,