6 letter words:
puffer14,
truffe12,
tuffet12,
fetter9,
refute9,
tufter9,
petter8,
puttee8,
putter8,
repute8,
5 letter words:
ruffe11,
erupt7,
peter7,
puree7,
rupee7,
tutee5,
utter5,
4 letter words:
pfft12,
puff12,
ruff10,
teff10,
tuff10,
feet7,
fere7,
fete7,
free7,
fret7,
reef7,
reft7,
tref7,
tuft7,
turf7,
peer6,
pere6,
pert6,
pree6,
pure6,
putt6,
rete4,
tree4,
tret4,
true4,
3 letter words:
eff9,
eft6,
fee6,
fer6,
fet6,
feu6,
fur6,
ref6,
pee5,
per5,
pet5,
pur5,
put5,
rep5,
tup5,
urp5,
ere3,
ree3,
ret3,
rue3,
rut3,
tee3,
tet3,
tut3,
ute3,
2 letter words:
ef5,
fe5,
pe4,
up4,
er2,
et2,
re2,
ut2,