<p><strong>Verb (used without object)</strong></p><ul><li>To shake or tremble with cold, fear, excitement, etc.</li><li>Nautical. (of a fore-and-aft sail) to shake when too close to the wind.</li><li>(of a sailing vessel) to be headed so close to the wind that the sails shake.</li></ul><p><strong>Noun</strong></p><ul><li>A tremulous motion; a tremble or quiver: The thought sent a shiver down her spine.</li><li>(the) shivers, an attack of shivering or chills.</li></ul>