from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A difficult or disagreeable responsibility or necessity; a burden or obligation.
  • n. A stigma.
  • n. Blame.
  • n. The burden of proof: The onus was on the defense attorney.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A legal obligation.
  • n. Burden of proof, onus probandi
  • n. Stigma.
  • n. Blame.
  • n. Responsibility; burden.

from the GNU version of the Collaborative International Dictionary of English

  • n. A burden; an obligation.

from The Century Dictionary and Cyclopedia

  • n. A burden: often used for onus probandi, ‘onus of proof.’

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. an onerous or difficult concern


(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin onus ("burden"). (Wiktionary)



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