root - definition and synonyms


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  1. 1
    [countable] the part of a plant that grows under the ground, through which the plant gets water and food
  2. 2
    [countable] the part of a hair, tooth, or nail that is under your skin
  3. 3


    [plural] the origins or background of something

    What are the historical roots of the region’s problems?

    have its roots in something:

    The Association has its roots in the early 1950s.

    1. a.
      the place, culture, or family that someone comes from originally
      go back to your roots:

      With this latest book the author goes back to his Scottish roots.

  4. 4
    [countable] a basic cause or idea

    an unusual film with an ingenious idea at its root

    root of:

    We need to get to the root of the problem.

     Synonyms and related words
  5. 5
    [countable] maths the root of a number is another number that, when multiplied by itself a particular number of times, equals that number. For example, 3 is the square root of 9 and the cube root of 27.
  6. 6
    [countable] linguistics the most basic form of a word, or a word that is the base for other words
  7. 7
    [countable] music the note that forms the base of a chord in music
     Synonyms and related words
  8. 8
    [countable] medical the end of a nerve that is closest to the centre of your body