Did you know?

Click any word in a definition or example to find the entry for that word

knee - definition and synonyms

What are red words?

90% of the time, speakers of English use just 7,500 words in speech and writing. These words appear in red, and are graded with stars. One-star words are frequent, two-star words are more frequent, and three-star words are the most frequent.

Thesaurus diagram

The thesaurus of synonyms and related words is fully integrated into the dictionary. Click on the thesaurus category heading under the button in an entry to see the synonyms and related words for that meaning.

noun [countable]     knee pronunciation in American English
Word Forms
  1. 1
    the part in the middle of your leg, where it bends

    Bend your knees when you pick up heavy objects.

    We were up to our knees in mud.

    She wore a black dress reaching to just above the knee.

    Her knees buckled and she fell to the floor.

    Shirley sat in the corner, hugging her knees.

    a serious knee injury

    fall/drop etc. to your knees (=put your knees on the ground):

    He dropped to his knees and started praying.

    1. a.
      the part of a pants leg that covers your knee

      His jeans had holes in both knees.

      Synonyms and related words
  2. 2
    the upper part of your leg when you are sitting down, where you can hold a child or an object


to manipulate someone psychologically so that they begin to question their own perceptions and memories

BuzzWord Article

Open Dictionary

Dunning-Kruger effect

the phenomenon by which an incompetent person is too incompetent to understand his own incompetence

add a word


A must for anyone with an interest in the changing face of language. The Macmillan Dictionary blog explores English as it is spoken around the world today.

global English and language change from our blog
Macmillan learn live love play