One who validates. / Something that validates.

Third-person singular simple present indicative form of validate

the state of being valid

That validates

That serves to validate

(statistics) Any technique or instance of assessing how the results of a statistical analysis will generalize to an independent dataset.

A property of an hypothesis by which its appearance suggests to an observer that the hypothesis will be determined true if tested.

(logic) An argument's property of being valid due to being an instance of an argument form.

plural of cross-validation

(computing) Synonym of test suite