<p><strong>Verb</strong></p><ul><li><p>(used without object)</p><ul><li>to become smaller or thinner toward one end.</li><li>to grow gradually lean.</li></ul></li><li><p>(used with object)</p><ul><li>to make gradually smaller toward one end.</li><li>to reduce gradually.</li></ul></li></ul><p><strong>Noun</strong></p><ul><li>gradual diminution of width or thickness in an elongated object.</li><li>gradual decrease of force, capacity, etc.</li><li>anything having a tapering form, as a spire or obelisk.</li><li>a candle, especially a very slender one.</li><li>a long wick coated with wax, tallow, or the like, as for use in lighting candles or gas.</li></ul><p><strong>Verb Phrase</strong></p><ul><li>to become gradually more slender toward one end.</li><li>to cease by degrees; decrease; diminish: The storm is beginning to taper off now. I haven't stopped smoking entirely, but I'm tapering off to three cigarettes a day.</li></ul>