<p><strong>Noun:</strong></p><ul><li>the downward falling or sliding of a mass of soil, detritus, or rock on or from a steep slope.</li><li>the mass itself.</li><li>an election in which a particular victorious candidate or party receives an overwhelming mass or majority of votes: the 1936 landslide for Roosevelt.</li><li>any overwhelming victory: She won the contest by a landslide.</li></ul><p><strong>Verb:</strong></p><ul><li>(used without object) to come down in or as in a landslide.</li><li>to win an election by an overwhelming majority.</li></ul>