'Validity' definitions:

Definition of 'validity'

From: WordNet
noun
The quality of being valid and rigorous [syn: cogency, validity, rigor, rigour]
noun
The quality of having legal force or effectiveness [syn: validity, validness]
noun
The property of being strong and healthy in constitution [syn: robustness, hardiness, lustiness, validity]

Definition of 'Validity'

From: GCIDE
  • Validity \Va*lid"i*ty\, n. [Cf. F. validit['e], L. validitas strength.] [1913 Webster]
  • 1. The quality or state of being valid; strength; force; especially, power to convince; justness; soundness; as, the validity of an argument or proof; the validity of an objection. [1913 Webster]
  • 2. (Law) Legal strength, force, or authority; that quality of a thing which renders it supportable in law, or equity; as, the validity of a will; the validity of a contract, claim, or title. [1913 Webster]
  • 3. Value. [Obs.] "Rich validity." --Shak. [1913 Webster]

Synonyms of 'validity'

From: Moby Thesaurus