<p><strong>Verb (used with object):</strong></p><ul><li>to cause (a train, streetcar, etc.) to run off the rails of a track.</li><li>to cause to fail or become deflected from a purpose; reduce or delay the chances for success or development of.</li></ul><p><strong>Noun:</strong></p><ul><li>a track device for derailing rolling stock in an emergency.</li></ul><p><strong>End of Response</strong></p>