validity > define

noun

• The quality of being valid and rigorous.
  • synonyms: cogency, rigor, rigour
• The quality of having legal force or effectiveness.
  • synonyms: validness
• The property of being strong and healthy in constitution.
  • synonyms: robustness, hardiness, lustiness

• (n.) 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.
• (n.) Value.
• (n.) 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.