9 letter words:
ornithoid13,
7 letter words:
hornito10,
dinitro8,
6 letter words:
dhooti10,
hotrod10,
thoron9,
indoor7,
nitrid7,
toroid7,
5 letter words:
dhoti9,
third9,
honor8,
north8,
ortho8,
rhino8,
thorn8,
thoro8,
donor6,
droit6,
idiot6,
indri6,
iodin6,
nitid6,
ootid6,
rondo6,
tondi6,
tondo6,
intro5,
nitro5,
torii5,
4 letter words:
doth8,
hind8,
hood8,
hint7,
hoot7,
horn7,
thin7,
thio7,
thir7,
thro7,
dino5,
dint5,
dirt5,
doit5,
door5,
irid5,
nidi5,
nodi5,
odor5,
ordo5,
rind5,
rood5,
trod5,
inro4,
inti4,
into4,
iron4,
noir4,
nori4,
onto4,
riot4,
root4,
roti4,
roto4,
tiro4,
toon4,
tori4,
torn4,
toro4,
trio4,
3 letter words:
hid7,
hod7,
hin6,
hit6,
hon6,
hot6,
noh6,
nth6,
oho6,
ooh6,
rho6,
tho6,
din4,
dit4,
don4,
dor4,
dot4,
nod4,
rid4,
rod4,
tod4,
ion3,
nit3,
noo3,
nor3,
not3,
ono3,
oot3,
ort3,
rin3,
rot3,
tin3,
ton3,
too3,
tor3,
2 letter words:
hi5,
ho5,
oh5,
do3,
id3,
od3,
in2,
it2,
no2,
oi2,
on2,
or2,
ti2,
to2,