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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 error pronunciation in British English /ˈerə(r)/
Word Forms
  1. 1
    [countable/uncountable] a mistake, for example in a calculation or a decision
    error in: an error in our calculations
    make an error: He admitted that he’d made an error in rejecting their offer.
    clerical/factual/grammatical error: A simple clerical error meant that your order was posted to the wrong address.
    human/pilot/driver error: The accident is thought to have been a result of pilot error.
    Synonyms and related words
  2. 2
    [countable] a failure in a computer process
    Synonyms and related words



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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