<p><strong>Noun</strong></p><ul><li>A prominent or conspicuous object on land that serves as a guide, especially to ships at sea or to travelers on a road; a distinguishing landscape feature marking a site or location: The post office served as a landmark for locating the street to turn down.</li><li>Something used to mark the boundary of land.</li><li>A building or other place that is of outstanding historical, aesthetic, or cultural importance, often declared as such and given a special status landmark designation, ordaining its preservation, by some authorizing organization.</li><li>A significant or historic event, juncture, achievement, etc.: The court decision stands as a landmark in constitutional law.</li><li>Synonyms: benchmark, watershed, milestone.</li></ul><p><strong>Verb</strong></p><ul><li>To declare (a building, site, etc.) a landmark: a movement to landmark New York's older theaters.</li></ul>