mouth - definition and synonyms

noun [countable] 

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  1. 1
    the part of your face below your nose that you use to eat and speak. The corners of your mouth are the two outside ends of it, and the inside top part of your mouth is called the roof

    She opened her mouth to speak.

    I’ve got a funny taste in my mouth.

    1. a.
      if your mouth waters, it produces saliva (=liquid) because you are about to eat something that you like

      She felt her mouth watering in anticipation of the meal.

  2. 2
    someone who you have to provide food for

    How can the world support all these hungry mouths?

    a mouth to feed:

    Now I have another mouth to feed.

  3. 3
    the entrance to something such as a cave (=a hole in the side of a mountain) or tunnel
  4. 4
    the place where a river is widest and joins the sea