8 letter words:
oncogene11,
6 letter words:
congee9,
pongee9,
neocon8,
nonego7,
5 letter words:
copen9,
pence9,
ponce9,
cogon8,
conge8,
congo8,
pengo8,
cooee7,
nonce7,
penne7,
4 letter words:
cepe8,
coop8,
cope8,
poco8,
goop7,
pong7,
cone6,
conn6,
coon6,
neep6,
nope6,
once6,
open6,
peen6,
peon6,
pone6,
poon6,
gene5,
gone5,
goon5,
ogee5,
nene4,
neon4,
none4,
noon4,
3 letter words:
cep7,
cop7,
pec7,
cog6,
peg6,
cee5,
con5,
coo5,
ope5,
pee5,
pen5,
poo5,
ego4,
eng4,
gee4,
gen4,
goo4,
neg4,
nog4,
eon3,
nee3,
noo3,
one3,
ono3,
2 letter words:
op4,
pe4,
go3,
en2,
ne2,
no2,
oe2,
on2,