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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.



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noun [countable] knock pronunciation in British English /nɒk/
Word Forms
  1. 1
    the sound of someone knocking on a door
    knock on/at: There was a loud knock at the door.
    Synonyms and related words
  2. 2
    an injury or damage caused by being knocked
    a nasty knock on the head
    Synonyms and related words
    1. a.
      an instance of knocking someone or something
      The watch is built to withstand the occasional knock.
  3. 3
    something bad or unpleasant that happens to someone
    hard knocks: Life is full of hard knocks.


used to describe foods which don't contain ingredients such as wheat, dairy products etc …

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Open Dictionary

red market

the buying and selling of human organs

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