validity
n. uncountable C1 Advanced Oxford US //vəˈɫɪdəti// UK //vælˈɪdɪti// va·lid·i·ty
n. the quality of being true, correct, or based on solid facts. If something has this, people can trust it or accept it as legal.
n. the quality of being logically or factually sound; the state of being legally or officially binding.
The lawyer questioned the validity of the witness's statement.
Researchers must ensure the validity of their data before publishing the results in a scientific journal.
While the emotional core of the argument resonated with the audience, critics were quick to point out that the logical validity of the premise remained unproven.
From valid + -ity, borrowed from Middle French validité, from Late Latin validitas.
Usage
Often used with the verbs 'question', 'challenge', or 'confirm'.