<p><strong>Noun:</strong></p><ul><li>A valueless plant growing wild, especially one that grows on cultivated ground to the exclusion or injury of the desired crop.</li><li>Any undesirable or troublesome plant, especially one that grows profusely where it is not wanted: The vacant lot was covered with weeds.</li><li>Informal: a cigarette or cigar.</li><li>Slang: a marijuana cigarette.</li><li>A thin, ungainly person or animal.</li><li>A wretched or useless animal, especially a horse unfit for racing or breeding purposes.</li><li>The weed, Informal: tobacco.</li><li>Slang: marijuana.</li></ul><p><strong>Verb (used with object):</strong></p><ul><li>To free from weeds or troublesome plants; root out weeds from: to weed a garden.</li><li>To root out or remove (a weed or weeds), as from a garden (often followed by out): to weed out crab grass from a lawn.</li><li>To remove as being undesirable, inefficient, or superfluous (often followed by out): to weed out inexperienced players.</li><li>To rid (something) of undesirable or superfluous elements.</li></ul><p><strong>Verb (used without object):</strong></p><ul><li>To remove weeds or the like.</li></ul>