Definition of HUMMING

noun : HUMMING

Source: WordNet 3.1

  • 2. (

    ) the act of singing with closed lips ;

verb : HUMMING

Source: WordNet 3.1

  • 1. (

    ) sing with closed lips; "She hummed a melody" ;

  • 4. (

    ) make a low continuous sound; "The refrigerator is humming" ;


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