7 letter words:
nonuple9,
6 letter words:
loupen8,
unopen8,
5 letter words:
elope7,
loupe7,
pelon7,
penne7,
pleon7,
unpen7,
leone5,
4 letter words:
lope6,
loup6,
neep6,
nope6,
open6,
peel6,
peen6,
pele6,
peon6,
pole6,
pone6,
pule6,
upon6,
enol4,
leno4,
lone4,
lune4,
nene4,
neon4,
noel4,
none4,
noun4,
3 letter words:
lop5,
ope5,
pee5,
pen5,
pol5,
pul5,
pun5,
upo5,
eel3,
eon3,
lee3,
leu3,
nee3,
nun3,
ole3,
one3,
2 letter words:
op4,
pe4,
up4,
el2,
en2,
lo2,
ne2,
no2,
nu2,
oe2,
on2,
un2,