6 letter words:
opines8,
ponies8,
5 letter words:
opens7,
opine7,
opsin7,
peins7,
penis7,
peons7,
pines7,
pions7,
poise7,
pones7,
psion7,
snipe7,
snoep7,
spine7,
eosin5,
noise5,
4 letter words:
epos6,
neps6,
nips6,
nope6,
open6,
opes6,
pein6,
peni6,
pens6,
peon6,
peso6,
pies6,
pine6,
pins6,
pion6,
pise6,
piso6,
pois6,
pone6,
pons6,
pose6,
sipe6,
snip6,
spie6,
spin6,
eons4,
ions4,
nies4,
noes4,
nose4,
ones4,
onie4,
sien4,
sine4,
sone4,
3 letter words:
nep5,
nip5,
ope5,
ops5,
pen5,
pes5,
pie5,
pin5,
pis5,
poi5,
pos5,
psi5,
sip5,
sop5,
ens3,
eon3,
ins3,
ion3,
ios3,
iso3,
nie3,
nis3,
nos3,
oes3,
one3,
ons3,
ose3,
sei3,
sen3,
sin3,
son3,
2 letter words:
op4,
pe4,
pi4,
po4,
en2,
es2,
in2,
io2,
is2,
ne2,
no2,
oe2,
oi2,
on2,
os2,
si2,
so2,