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[vuh-lid-i-tee] /vəˈlɪd ɪ ti/
the state or quality of being valid:
to question the validity of the argument.
legal soundness or force.
Origin of validity
1540-50; < Late Latin validitās, equivalent to Latin valid(us) valid + -itās- -ity
Related forms
nonvalidity, noun, plural nonvalidities.
prevalidity, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for validity
  • Rather than test the validity of those claims, the sailors quickly set back to sea in a longboat.
  • The reviewers will judge the validity of a project and its budget with a set list of criteria which can be seen here.
  • But to challenge the validity of mathematics or of natural science was quite another matter.
  • Indeed, the dreamer does not even care to admit the validity of this comparison when it is pointed out to him.
  • Moreover, the illustration does not depend for its validity upon its historical character.
  • They come across as selfish and immature, even if at the heart of them there's some validity to his argument.
  • Evaluate the validity, reliability and support of an argument as found in editorials, letters to the editor or book reviews.
  • As one study catapults into the public sphere, careers and even entire scientific disciplines can come to hinge on its validity.
  • It also linked to, and partially relied on, a website of dubious validity.
  • Hence the familiar ideas continue to be repeated, long past their demonstrable validity.
Word Origin and History for validity

1550s, from Middle French validité, from Latin validitatem (nominative validitas) "strength," from validus (see valid).

Online Etymology Dictionary, © 2010 Douglas Harper
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