<p><strong>Adjective:</strong></p><ul><li>of or relating to a region of considerable extent; not merely local: a regional meeting of the Boy Scouts.</li><li>of or relating to a particular region, district, area, or part, as of a country; sectional; local: regional differences in pronunciation.</li><li>pertaining to, affecting, or localized in a particular area or part of the body: regional anesthesia.</li><li>having, exhibiting, or characterized by regionalism: He writes regional novels.</li></ul><p><strong>Noun:</strong></p><ul><li>often regionals: a regional competition or tournament: The basketball team won the regionals.</li><li>a regional company, branch, stock exchange, etc.: Regionals are getting stiff competition from the national firms.</li></ul>