Definitions: (noun) The validity of evidence, a statement, a reason, etc. is the level to which it is true or reasonable. (noun) The validity of a license, ticket, document, etc. depends on whether it is official and acceptable.
Examples: (noun) The validity of the governments claims has been questioned by the new research. (noun) Due to the doubts about the validity of the evidence presented, the case cannot go forward. (noun) The validity of a passport changes if the wrong person carries it.
Synonyms: truth, accuracy.
Academic Word List Sublist and Group: 3 C