7 letter words:
coinfer12,
conifer12,
inforce12,
6 letter words:
confer11,
coiner8,
orcein8,
orcine8,
recoin8,
5 letter words:
force10,
finer8,
freon8,
infer8,
corni7,
crine7,
crone7,
nicer7,
oncer7,
orcin7,
recon7,
irone5,
4 letter words:
coif9,
conf9,
corf9,
fice9,
fico9,
foci9,
feni7,
fern7,
fier7,
fine7,
fino7,
fire7,
firn7,
foen7,
foin7,
fone7,
fore7,
froe7,
info7,
neif7,
nief7,
nife7,
orfe7,
reif7,
rife7,
cero6,
cine6,
cion6,
cire6,
coin6,
coir6,
cone6,
coni6,
core6,
corn6,
eric6,
icer6,
icon6,
nice6,
once6,
rice6,
inro4,
iron4,
noir4,
nori4,
oner4,
onie4,
rein4,
rine4,
roin4,
rone4,
3 letter words:
erf6,
fen6,
fer6,
fie6,
fin6,
fir6,
foe6,
fon6,
for6,
fro6,
nef6,
orf6,
ref6,
rif6,
con5,
cor5,
eco5,
ice5,
orc5,
rec5,
roc5,
eon3,
ern3,
ion3,
ire3,
nie3,
nor3,
one3,
ore3,
rei3,
ren3,
reo3,
rin3,
roe3,
2 letter words:
ef5,
fe5,
if5,
of5,
en2,
er2,
in2,
io2,
ne2,
no2,
oe2,
oi2,
on2,
or2,
re2,