Definition of no noun from the Oxford Advanced Learner's Dictionary

     

    no

     noun
    noun
    BrE BrE//nəʊ//
     
    ; NAmE NAmE//noʊ//
     
    (pl. noes
    BrE BrE//nəʊz//
     
    ; NAmE NAmE//noʊz//
     
    )
     
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  1. 1an answer that shows you do not agree with an idea, a statement, etc.; a person who says ‘no’ Can't you give me a straight yes or no? When we took a vote there were nine yesses and 3 noes. I'll put you down as a no.
  2. 2the noes [plural] the total number of people voting ‘no’ in a formal debate, for example in a parliament The noes have it (= more people have voted against something than for it). opposite ayes
  3. Word Origin Old English , (adverb), from ne ‘not’ + ō, ā ‘ever’. The determiner arose in Middle English (originally before words beginning with any consonant except h-), reduced from non, from Old English nān, from ne ‘not’ + ān ‘one’, of Germanic origin.Extra examples He gave a flat no when asked to comment. I think that’s a no to the first question. I’ll put you down as a no.
See the Oxford Advanced American Dictionary entry: no