13 letter words:
nonappearance19,
10 letter words:
appearance16,
9 letter words:
cannoneer11,
8 letter words:
coappear14,
panacean12,
paranoea10,
7 letter words:
apocarp13,
panacea11,
parpane11,
penance11,
prepone11,
propane11,
propene11,
caranna9,
corneae9,
narceen9,
peraeon9,
6 letter words:
capper12,
copper12,
coppra12,
appear10,
canape10,
crepon10,
napper10,
parpen10,
pearce10,
percen10,
popera10,
prance10,
preace10,
rappee10,
rappen10,
ancone8,
ancora8,
apnoea8,
arcana8,
arcane8,
cannae8,
canner8,
cannon8,
canoer8,
careen8,
conner8,
cornea8,
earcon8,
encore8,
enrace8,
napron8,
nonpar8,
ocreae8,
opener8,
paneer8,
panner8,
pennae8,
penner8,
pennon8,
peraea8,
pereon8,
perone8,
recane8,
reopen8,
repone8,
annona6,
nonane6,
5 letter words:
apace9,
appro9,
caper9,
capon9,
carap9,
copen9,
coper9,
copra9,
crape9,
creep9,
crepe9,
nappa9,
nappe9,
opepe9,
pacer9,
pance9,
paper9,
peace9,
pecan9,
pence9,
perce9,
ponce9,
preop9,
rappe9,
recap9,
acorn7,
ancon7,
apnea7,
apron7,
areca7,
arepa7,
arpen7,
caner7,
canna7,
canoe7,
canon7,
cerne7,
conne7,
crane7,
crena7,
crone7,
nacre7,
nance7,
narco7,
neper7,
nonce7,
ocean7,
ocrea7,
oncer7,
opera7,
paean7,
paeon7,
panne7,
parae7,
pareo7,
peare7,
penna7,
penne7,
perea7,
porae7,
prana7,
preen7,
prone7,
racon7,
rance7,
recon7,
anana5,
anear5,
areae5,
arena5,
arene5,
nanna5,
ranee5,
renne5,
ronne5,
4 letter words:
capa8,
cape8,
capo8,
carp8,
cepe8,
cope8,
crap8,
crop8,
paca8,
pace8,
paco8,
papa8,
pape8,
parp8,
peep8,
pepo8,
perp8,
poep8,
pope8,
prep8,
prop8,
repp8,
acer6,
acne6,
acre6,
ance6,
aper6,
arco6,
arpa6,
cane6,
cann6,
care6,
carn6,
cere6,
cero6,
cone6,
conn6,
core6,
corn6,
cran6,
cree6,
napa6,
nape6,
narc6,
neap6,
neep6,
nope6,
once6,
open6,
orca6,
pane6,
para6,
pare6,
pean6,
pear6,
peen6,
peer6,
pene6,
peon6,
pere6,
pern6,
pone6,
pore6,
porn6,
prao6,
pree6,
proa6,
raca6,
race6,
rape6,
reap6,
repo6,
rope6,
aeon4,
aero4,
anan4,
anna4,
anno4,
anoa4,
anon4,
area4,
arna4,
earn4,
eoan4,
erne4,
naan4,
nana4,
nane4,
nare4,
near4,
nene4,
neon4,
nona4,
none4,
oner4,
rana4,
rean4,
reen4,
roan4,
rone4,
3 letter words:
app7,
cap7,
cep7,
cop7,
pac7,
pap7,
pec7,
pep7,
pop7,
ace5,
ape5,
apo5,
arc5,
caa5,
can5,
car5,
cee5,
con5,
cor5,
eco5,
nap5,
nep5,
oca5,
ope5,
orc5,
pan5,
par5,
pea5,
pee5,
pen5,
per5,
poa5,
pre5,
pro5,
rap5,
rec5,
rep5,
roc5,
ana3,
ane3,
ann3,
are3,
ean3,
ear3,
een3,
ene3,
eon3,
era3,
ere3,
ern3,
nae3,
nan3,
nee3,
non3,
nor3,
oar3,
one3,
ora3,
ore3,
ran3,
ree3,
ren3,
reo3,
roe3,
2 letter words:
op4,
pa4,
pe4,
po4,
aa2,
ae2,
an2,
ar2,
ea2,
ee2,
en2,
er2,
na2,
ne2,
no2,
oe2,
on2,
or2,
re2,