dike
noun /daɪk/
  /daɪk/
 (also dyke)
 - a long thick wall that is built to stop water flooding onto a low area of land, especially from the seaTopics Geographyc2
 - (especially British English) a channel that carries water away from the land synonym ditchTopics Geographyc2                                     
 - (taboo, slang) a word for a lesbian that is usually offensive