<p><strong>Verb</strong></p><ul><li>(used without object), quaked, quaking.<ul><li>(of persons) to shake or tremble from cold, weakness, fear, anger, or the like: He spoke boldly even though his legs were quaking.</li><li>Synonyms: shudder</li></ul></li><li>(of things) to shake or tremble, as from shock, internal convulsion, or instability: The earth suddenly began to quake.<ul><li>Synonyms: quiver</li></ul></li></ul><p><strong>Noun</strong></p><ul><li>an earthquake.</li><li>a trembling or tremulous agitation.</li></ul>