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

     

    dyke

     noun
    (also dike)noun
    BrE BrE//daɪk//
     
    ; NAmE NAmE//daɪk//
     
    Coastlines and the sea
     
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  1. 1a long thick wall that is built to stop water flooding onto a low area of land, especially from the sea See related entries: Coastlines and the sea
  2. 2(especially British English) a channel that carries water away from the land synonym ditch See related entries: Coastlines and the sea
  3. 3(taboo, slang) a word for a lesbian, that is usually offensive
  4. Word Origin senses 1 to 2 Middle English (denoting a trench or ditch): from Old Norse dík, related to ditch. Sense (1) has been influenced by Middle Low German dīk ‘dam’ and Middle Dutch dijc ‘ditch, dam’. sense 3 1940s (earlier as bulldyke): of unknown origin.Extra examples During the 1997 floods the sea broke through the dyke. The first dykes were cut in the Middle Ages. Wind pumps were built at intervals on the dykes.
See the Oxford Advanced American Dictionary entry: dyke

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