dyke
From Longman Dictionary of Contemporary EnglishRelated topics: Building, Water, Civildykedyke, dike /daɪk/ noun [countable] 1 TBTTWa wall or bank built to keep back water and prevent flooding2 SYINSULT taboo informal an offensive word for a lesbian (=woman who is sexually attracted to women). Do not use this word.3 especially British EnglishTECTB a narrow passage to carry water away SYN ditchOrigin dyke 1. Old English dic “ditch, dike”2. (1900-2000) Probably from morphadyke “male and female person, homosexual” ((1900-2000)), from hermaphrodite