Criteria and Criterion: Can 'Criteria' Be Singular?
Criteria is typically a plural noun referring to standards on which a judgment can be made. Its singular is criterion, but evidence shows that criteria is frequently being used as a singular as well as a plural, much like data and agenda and their lesser-used singulars datum and agendum. As English borrows words from Latin and Greek, we sometimes must adjust our grammar to accommodate how those words were used in their original languages.
DA: 85 PA: 72 MOZ Rank: 52