5 letter words:
pengo8,
4 letter words:
knop10,
poke10,
gook9,
keno8,
nook8,
goop7,
pong7,
nope6,
open6,
peon6,
pone6,
poon6,
gone5,
goon5,
3 letter words:
kep9,
kop9,
keg8,
ken7,
oke7,
peg6,
ope5,
pen5,
poo5,
ego4,
eng4,
gen4,
goo4,
neg4,
nog4,
eon3,
noo3,
one3,
ono3,
2 letter words:
op4,
pe4,
go3,
en2,
ne2,
no2,
oe2,
on2,