9 letter words:
rainproof14,
8 letter words:
proofing14,
airproof13,
7 letter words:
jargoon15,
jarring15,
roofing11,
parring10,
pignora10,
pogonia10,
roaring8,
6 letter words:
japing16,
jargon14,
faring10,
paring9,
pooing9,
poring9,
raping9,
roping9,
garron7,
oaring7,
onagri7,
origan7,
raring7,
5 letter words:
jingo13,
rioja12,
proof10,
fagin9,
forgo9,
ganof9,
gonif9,
gonof9,
aping8,
friar8,
gipon8,
infra8,
oping8,
pargo8,
pingo8,
pirog8,
prang8,
prong8,
apron7,
orpin7,
piano7,
poori7,
porno7,
prion7,
prior7,
argon6,
garni6,
giron6,
gnarr6,
gonia6,
grain6,
groan6,
groin6,
orang6,
organ6,
rigor6,
noria5,
4 letter words:
jiao11,
join11,
frap9,
poof9,
prof9,
fang8,
frag8,
frig8,
frog8,
goof8,
fain7,
fair7,
fano7,
faro7,
fiar7,
fino7,
firn7,
foin7,
fora7,
goop7,
gorp7,
grip7,
info7,
naif7,
pang7,
ping7,
pong7,
prig7,
prog7,
roof7,
nipa6,
pain6,
pair6,
parr6,
pian6,
pina6,
pion6,
pirn6,
poon6,
poor6,
porn6,
prao6,
proa6,
agin5,
agio5,
agon5,
gain5,
girn5,
giro5,
gnar5,
goon5,
gran5,
grin5,
ragi5,
rang5,
ring5,
airn4,
inro4,
iron4,
naoi4,
noir4,
nori4,
orra4,
rain4,
rani4,
roan4,
roar4,
3 letter words:
jag11,
jig11,
jog11,
jar10,
jin10,
raj10,
fop8,
fag7,
fig7,
fog7,
arf6,
fan6,
far6,
fin6,
fir6,
fon6,
for6,
fro6,
gap6,
gip6,
oaf6,
pig6,
rif6,
apo5,
nap5,
nip5,
pan5,
par5,
pia5,
pin5,
poi5,
poo5,
pro5,
rap5,
rip5,
ago4,
gan4,
gar4,
gin4,
goa4,
goo4,
gor4,
nag4,
nog4,
rag4,
rig4,
ain3,
air3,
ani3,
ion3,
noo3,
nor3,
oar3,
ono3,
ora3,
rai3,
ran3,
ria3,
rin3,
2 letter words:
jo9,
fa5,
if5,
of5,
op4,
pa4,
pi4,
ag3,
go3,
ai2,
an2,
ar2,
in2,
na2,
no2,
oi2,
on2,
or2,