US term for the person who makes a voluntary declaration of facts in a written statement and signs it under oath. The equivalent UK term is deponent. See also affidavit.

Use affiant in a sentence

  • If you need someone to make a report for you in a legal setting you should go with the one that you think will be the most affiant.

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  • The affiant made a statement and we had to respect that so their words were pivotal in the case and our business' future.

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  • He swore by the affidavit and thus was an affiant, which meant he swore to its truth and could attest to its validity.

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