Definition of weed noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//wiːd//
    ; NAmE NAmE//wiːd//
    Addiction, Gardening
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  1. 1 [countable] a wild plant growing where it is not wanted, especially among crops or garden plants The yard was overgrown with weeds. Routine maintenance of the garden consists of keeping weeds under control. There were weeds pushing up through the gravel. See related entries: Gardening
  2. 2 [uncountable] any wild plant without flowers that grows in water and forms a green floating mass
  3. 3the weed [singular] (humorous) tobacco or cigarettes I wish I could give up the weed (= stop smoking). See related entries: Addiction
  4. 4 [uncountable] (informal) the drug cannabis See related entries: Addiction
  5. 5[countable] (British English, informal, disapproving) a person with a weak character or body Don’t be such a weed!
  6. Word OriginOld English wēod (noun), wēodian (verb), of unknown origin; related to Dutch wieden (verb).
See the Oxford Advanced American Dictionary entry: weed