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due diligence

[doo dil-i-juh ns, dyoo] /ˈdu ˈdɪl ɪ dʒəns, ˈdyu/
noun, Law, Business.
reasonable care and caution exercised by a person who is buying, selling, giving professional advice, etc., especially as required by law to protect against incurring liability:
The court said there was due diligence on the part of the plaintiff.
the process of gathering or disclosing relevant and reliable information about a prospective sale, purchase, contract, etc.:
You should perform due diligence on a company before investing.
Origin of due diligence
1785-90 (1450-1500 in the sense “requisite effort”) Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for due diligence
Contemporary Examples
Historical Examples
  • All due diligence has been exercised to discover him, but without success.


    J. G. Holland
  • It is a very fatiguing journey if made with due diligence, and it would require a full month for us to see the country properly.

    Asiatic Breezes Oliver Optic
  • They decided that Great Britain had not used "due diligence" to prevent the abuse of her ports by the Confederates.

  • That ceremony over, they proceeded with all due diligence to honour the last request of the departed laird.

  • He stipulates for fair and reasonable knowledge and due diligence, but not for extraordinary qualifications.

    The Seaman's Friend Richard Henry Dana

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