6 letter words:
incuse8,
5 letter words:
bices9,
cubes9,
bines7,
cines7,
incus7,
since7,
4 letter words:
bice8,
cube8,
cubs8,
bens6,
bine6,
bins6,
bise6,
buns6,
cine6,
cues6,
ecus6,
ices6,
nebs6,
nibs6,
nice6,
nubs6,
sice6,
snib6,
snub6,
unbe6,
unci6,
sine4,
3 letter words:
cub7,
ben5,
bes5,
bin5,
bis5,
bun5,
bus5,
cis5,
cue5,
ecu5,
ice5,
neb5,
nib5,
nub5,
sec5,
sib5,
sic5,
sub5,
ens3,
ins3,
nus3,
sei3,
sen3,
sin3,
sue3,
sun3,
uns3,
use3,
2 letter words:
be4,
bi4,
en2,
es2,
in2,
is2,
ne2,
nu2,
si2,
un2,
us2,