7 letter words:
checker18,
recheck18,
6 letter words:
creche13,
etcher11,
5 letter words:
check16,
cheek14,
ketch14,
creek11,
cheer10,
chert10,
retch10,
recce9,
ether8,
there8,
three8,
erect7,
terce7,
4 letter words:
heck13,
khet11,
reck10,
eche9,
echt9,
etch9,
tech9,
keet8,
reek8,
trek8,
here7,
thee7,
cere6,
cete6,
rete4,
tree4,
3 letter words:
eek7,
eke7,
eth6,
her6,
het6,
the6,
cee5,
rec5,
ere3,
ree3,
ret3,
tee3,
2 letter words:
eh5,
he5,
er2,
et2,
re2,