4 letter words:
kefs11,
euks8,
kues8,
okes8,
ouks8,
skeo8,
soke8,
souk8,
ukes8,
feus7,
foes7,
fous7,
fuse7,
ufos7,
3 letter words:
kef10,
euk7,
kos7,
kue7,
oke7,
ouk7,
suk7,
uke7,
efs6,
fes6,
feu6,
foe6,
fou6,
ufo6,
oes3,
ose3,
ous3,
sou3,
sue3,
use3,
2 letter words:
ko6,
ef5,
fe5,
of5,
es2,
oe2,
os2,
ou2,
so2,
us2,