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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 vacuum pronunciation in British English /ˈvækjʊəm/
Word Forms
  1. 1
    [countable] physics a space that has had all the air and any other gases removed from it
    Synonyms and related words
  2. 2
    [singular] a feeling that something is missing, or a situation in which something is missing
    political/power vacuum: the political vacuum left by his unexpected death
    create a vacuum: The collapse of the dictatorship created a vacuum in which criminal gangs flourished.
    fill a vacuum (=replace something): They need something to fill the vacuum left by the end of Marxism.



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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