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

     

    lingo

     noun
    noun
    BrE BrE//ˈlɪŋɡəʊ//
     
    ; NAmE NAmE//ˈlɪŋɡoʊ//
     
    [singular](informal)
     
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  1. 1a language, especially a foreign language He doesn't speak the lingo.
  2. 2(especially North American English) expressions used by a particular group of people synonym jargon baseball lingo
  3. Word Origin mid 17th cent.: probably via Portuguese lingoa from Latin lingua ‘tongue’.
See the Oxford Advanced American Dictionary entry: lingo