Some things that begin with the letter O:
Outstanding and optimistic are positive words. They begin with the letter o.
Oceanography and optometry are college subjects. They begin with the letter o.
Odds are a value. It begins with the letter O.
There are no cities in Scotland that begin with the letter O. However, Oban is a town in Scotland.
Several four letter words begin with the letter q. However, there are no four letter words that begin with the letter q and end with the letter o.
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OctopusOyster
Oryx
otis
odometer
Oprah
Outstanding