7 letter words:
trekker15,
6 letter words:
keeker14,
reeker10,
retree6,
teeter6,
terete6,
terret6,
5 letter words:
terek9,
4 letter words:
keek12,
keet8,
kete8,
reek8,
reke8,
teek8,
trek8,
rete4,
teer4,
tete4,
tree4,
tret4,
3 letter words:
eek7,
eke7,
erk7,
ket7,
ere3,
err3,
ree3,
ret3,
tee3,
tet3,
2 letter words:
ee2,
er2,
et2,
re2,
te2,