13 letter words:
ferroconcrete20,
9 letter words:
conferree14,
conferrer14,
ferrocene14,
reenforce14,
correcter13,
corrector13,
8 letter words:
conferee13,
confrere13,
enforcer13,
reconfer13,
concerto12,
concrete12,
ferreter11,
referent11,
rooftree11,
recenter10,
7 letter words:
confect14,
crofter12,
enforce12,
refence12,
coercer11,
coerect11,
concert11,
correct11,
fronter10,
oftener10,
refront10,
coroner9,
coronet9,
crooner9,
ecotone9,
erecter9,
erector9,
reerect9,
enterer7,
reenter7,
terreen7,
terrene7,
6 letter words:
confer11,
fencer11,
forcer11,
refect11,
coerce10,
ferret9,
foetor9,
footer9,
reefer9,
reroof9,
roofer9,
cenote8,
center8,
centre8,
cooter8,
corner8,
cornet8,
croton8,
encore8,
eocene8,
recent8,
rector8,
tenrec8,
enroot6,
entree6,
eterne6,
renter6,
rerent6,
retene6,
retore6,
retorn6,
rooter6,
teener6,
terror6,
torero6,
5 letter words:
croft10,
fence10,
force10,
recce9,
fetor8,
forte8,
freer8,
frere8,
front8,
frore8,
often8,
ofter8,
refer8,
cento7,
conte7,
conto7,
cooee7,
cooer7,
corer7,
crone7,
croon7,
crore7,
erect7,
oncet7,
recon7,
recto7,
terce7,
enter5,
error5,
noter5,
rente5,
retro5,
rotor5,
tenor5,
terne5,
toner5,
treen5,
trone5,
4 letter words:
coft9,
coof9,
corf9,
coco8,
croc8,
feet7,
fere7,
fern7,
fete7,
font7,
foot7,
fore7,
fort7,
free7,
fret7,
froe7,
reef7,
reft7,
roof7,
tref7,
cent6,
cere6,
cero6,
cete6,
cone6,
coon6,
coot6,
core6,
corn6,
cote6,
once6,
torc6,
erne4,
note4,
onto4,
rent4,
rete4,
root4,
rote4,
roto4,
teen4,
tern4,
tone4,
toon4,
tore4,
torn4,
toro4,
torr4,
tree4,
3 letter words:
eft6,
fee6,
fen6,
fer6,
fet6,
foe6,
fon6,
for6,
fro6,
oft6,
ref6,
cee5,
con5,
coo5,
cor5,
cot5,
orc5,
rec5,
roc5,
eon3,
ere3,
ern3,
err3,
nee3,
net3,
noo3,
nor3,
not3,
one3,
ono3,
oot3,
ore3,
ort3,
ree3,
ret3,
roe3,
rot3,
tee3,
ten3,
toe3,
ton3,
too3,
tor3,
2 letter words:
ef5,
fe5,
of5,
en2,
er2,
et2,
ne2,
no2,
oe2,
on2,
or2,
re2,
to2,