<p><strong>Adjective</strong></p><ul><li>on or near a border or boundary.</li><li>having an uncertain, indeterminate, or debatable status: He was a borderline case for admission to the program—please encourage him to apply again next year.</li><li>not quite meeting accepted, expected, or average standards: Discover specific how-to strategies for turning a borderline student into a confident achiever.</li><li>approaching bad taste or obscenity: He made several borderline remarks that offended them.</li></ul><p><strong>Noun</strong></p><ul><li>a border or boundary: The town of Tiverton, Rhode Island, rests on the once-disputed Massachusetts borderline.</li><li>a notional dividing line: Often the borderline between safety and toxicity is very small, and every year thousands of fish die as a consequence of chemical overdosing.</li><li>a person with borderline personality disorder.</li></ul><p><strong>End of Response</strong></p>