mouse - definition and synonyms

noun [countable] 

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  1. 1
    a small furry animal with a long tail

    The cat’s caught another mouse.

  2. 2
    pluralmouses or mice
    computing a small object that you move in order to do things on a computer screen. When you press on a part of the mouse, you click on it. You also click on things on the computer screen itself, using a mouse

    Click on the left mouse button.

  3. 3
    informal someone who is quiet and prefers not to be noticed