<p><strong>Adjective</strong></p><ul><li>Slicker, slickest.</li><li>Smooth and glossy; sleek.</li><li>Smooth in manners, speech, etc.; suave.</li><li>Sly; shrewdly adroit: He's a slick customer, all right.</li><li>Lacking aim, direction, or stability.</li></ul><p><strong>Noun</strong></p><ul><li>A smooth or slippery place or spot or the substance causing it: oil slick.</li><li>Informal: a magazine printed on paper having a more or less glossy finish.</li><li>Such a magazine regarded as possessing qualities, as expensiveness, chic, and sophistication, that hold appeal for a particular readership, as one whose members enjoy or are seeking affluence.</li><li>Such a magazine regarded as having sophisticated, deftly executed, but shallow or glib literary content.</li><li>Any woodworking chisel having a blade more than 2 inches (5 centimeters) wide.</li><li>Any of various paddlelike tools for smoothing a surface.</li><li>Automotive: a wide tire without a tread, used in racing.</li><li>Military Slang: a helicopter.</li><li>Metallurgy: a small trowel used for smoothing the surface of a mold.</li></ul><p><strong>Adverb</strong></p><ul><li>Smoothly; cleverly.</li></ul><p><strong>Verb</strong></p><ul><li>(used with object) To make sleek or smooth.</li><li>To use a slicker on (skins or hides).</li><li>Informal: to spruce up; make smart or fine (usually followed by up).</li></ul>