11 letter words:
monophthong22,
7 letter words:
pontoon9,
6 letter words:
gonoph12,
photog12,
phonon11,
photon11,
gnomon9,
ponton8,
5 letter words:
oomph12,
month10,
phono10,
photo10,
thong9,
mongo8,
4 letter words:
homo9,
hoop9,
moth9,
phon9,
phot9,
pooh9,
toph9,
goth8,
hong8,
pomo8,
goop7,
hoot7,
pong7,
mono6,
moon6,
moot6,
poon6,
toom6,
topo6,
goon5,
tong5,
noon4,
onto4,
toon4,
3 letter words:
hop8,
mho8,
ohm8,
pht8,
poh8,
hog7,
mop7,
pom7,
hon6,
hot6,
mog6,
noh6,
nth6,
oho6,
ooh6,
tho6,
mon5,
moo5,
mot5,
nom5,
opt5,
poo5,
pot5,
tom5,
top5,
goo4,
got4,
nog4,
tog4,
noo3,
not3,
ono3,
oot3,
ton3,
too3,
2 letter words:
hm7,
ho5,
oh5,
mo4,
om4,
op4,
go3,
no2,
on2,
to2,