<p><strong>Noun:</strong></p><ul><li>The intentional taking of one's own life.</li><li>Destruction of one's own interests or prospects: Buying that house was financial suicide.</li><li>A person who intentionally takes their own life.</li></ul><p><strong>Verb (used without object):</strong></p><ul><li>To intentionally end one’s own life; to die by suicide.</li></ul><p><strong>Verb (used with object):</strong></p><ul><li>To kill (oneself).</li></ul>