<p><strong>Verb (used with object):</strong></p><ul><li>to strike, especially with a quick, smart, or light blow: He rapped the door with his cane.</li><li>to utter sharply or vigorously: to rap out a command.</li><li>(of a spirit summoned by a medium) to communicate (a message) by raps (often followed by out).</li><li>Slang: to criticize sharply: Critics could hardly wait to rap the play.</li><li>Slang: to arrest, detain, or sentence for a crime.</li><li>Metallurgy: to jar (a pattern) loose from a sand mold.</li></ul><p><strong>Verb (used without object):</strong></p><ul><li>to knock smartly or lightly, especially so as to make a noise: to rap on a door.</li><li>Slang: to talk or discuss, especially freely, openly, or volubly; chat.</li><li>Slang: to talk rhythmically to the beat of rap music.</li></ul><p><strong>Noun:</strong></p><ul><li>a quick, smart, or light blow: a rap on the knuckles with a ruler.</li><li>the sound produced by such a blow: They heard a loud rap at the door.</li><li>Slang: blame or punishment, especially for a crime.</li><li>Slang: a criminal charge: a murder rap.</li><li>Slang: response, reception, or judgment: The product has been getting a very bad rap.</li><li>Slang: a talk, conversation, or discussion; chat.</li><li>talk designed to impress, convince, etc.; spiel: a high-pressure sales rap.</li><li>rap music.</li></ul>