DICT.TW Dictionary Taiwan

 O n.; pl. O's or Oes
 1. The letter O, or its sound. “Mouthing out his hollow oes and aes.”
 2. Something shaped like the letter O; a circle or oval. “This wooden O [Globe Theater]”.
 3. A cipher; zero. [R.]
    Thou art an O without a figure.   --Shak.
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 os
      n 1: a mouth or mouthlike opening
      2: a hard brittle blue-gray or blue-black metallic element that
         is one of the platinum metals; the heaviest metal known
         [syn: osmium, atomic number 76]
      3: (computer science) software that controls the execution of
         computer programs and may provide various services [syn: operating
         system]
      4: the left eye [syn: oculus sinister]
      5: rigid connective tissue that makes up the skeleton of
         vertebrates [syn: bone]
      [also: ossa (pl), osar (pl), ora (pl)]