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Definitions of os
  1. noun
    the left eye

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  2. noun
    (computer science) software that controls the execution of computer programs and may provide various services

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  3. noun
    rigid connective tissue that makes up the skeleton of vertebrates

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  4. noun
    a hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal known
  5. noun
    a mouth or mouthlike opening
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Antonyms of os
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