5 letter words:
luter5,
trull5,
tulle5,
4 letter words:
lulu4,
lure4,
lute4,
rule4,
tell4,
true4,
tule4,
3 letter words:
ell3,
elt3,
let3,
leu3,
lur3,
ret3,
rue3,
rut3,
tel3,
ule3,
ulu3,
ure3,
ute3,
utu3,
2 letter words:
el2,
er2,
et2,
re2,
te2,
ur2,
ut2,