6 letter words:
tuffet12,
4 letter words:
funk11,
teff10,
tuff10,
kent8,
kune8,
neuk8,
nuke8,
enuf7,
tuft7,
nett4,
tent4,
tune4,
3 letter words:
kef10,
eff9,
ken7,
kue7,
uke7,
eft6,
fen6,
fet6,
feu6,
fun6,
net3,
nut3,
ten3,
tet3,
tun3,
tut3,
ute3,
2 letter words:
ef5,
fe5,
en2,
et2,
ne2,
nu2,
un2,
ut2,