Ocelot. It is a type of wild cat.
Outstanding and optimistic are positive words. They begin with the letter o.
oh
agoallegroalsoaltoarmadilloaudio
· osmosis
organicosmosisoxygen
omnipotent
Orbit and ozone are space words. They begin with the letter o.
Obese and oddball are insulting words. They begin with the letter o.
Ovary ?
On and Of
oy
ocean