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| o·nus [ ṓnəss ] (plural o·nus·es) |
noun |
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| Definition: |
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1. burden: a duty or responsibility
  The onus is on her to make the first move.
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2. blame: the blame for something
He'll always bear the onus of having caused the accident.
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3. law burden of proof or proceeding: the burden of proof or responsibility for acting in a legal proceeding
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| [Mid-17th century. < Latin, "burden, load"] |
