There are no planets in the solar system beginning with the letter 'O'.
There is an exoplanet named Orbitar, now named 42 Draconis b
No college in Maine begins with the letter O.
Earth ,
Obelisk
Oman is a country. It begins with the letter O.
The planet Earth.
Uranus is a planet.
No, there is not a continent that begins with the letter O.
Oman is the only country that begins with the letter O.
Oxygen is a gas that begins with the letter O.
Oxygen is a gas that begins with the letter O.
No college in Maine begins with the letter O.
Mars
Uranus
Earth ,
No neighboring country of Germany begins with the letter O. Oman is the only country in the world that begins with O and it is not near Germany.
The Ohio Buckeye tree begins with O. The Oriental Plane tree begins with O.
A word meaning to leave out which begins with an "o" is omit.