abbr.
Order of the Eastern Star(天主教)东星会

O \O\ ([=o]), n.; pl. {O's} or {Oes} ([=o]z).
1. The letter O, or its sound. ``Mouthing out his hollow oes
and aes.'' --Tennyson.

2. Something shaped like the letter O; a circle or oval.
``This wooden O [Globe Theater]''. --Shak.

3. A cipher; zero. [R.]

Thou art an O without a figure. --Shak.