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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 morefrequent, and three-star words are the most frequent.

noun [countable] British English pronunciation: problem /ˈprɒbləm/ 
Word Forms
  1. 1
    something that causes trouble or difficulty

    a major cause of traffic problems in the city

    problem of:

    the problem of unemployment

    problem for:

    Homelessness is a serious problem for a lot of young people.

    have problems with:

    We've been having problems with the heating in the office.

    solve a problem:

    That still doesn't solve our problem.

    cause someone a problem/cause a problem for someone:

    The continuing bad weather is causing serious problems for farmers.

    pose (=be) a problem (for someone/something):

    Racial tensions in the south of the city pose a real problem for the police.

    the (only) problem is (that):

    They're the best cameras on the market. The only problem is they're incredibly expensive.

    1. a.
      something that has a bad effect on someone's health or behaviour

      a drug/alcohol problem

      health/behaviour problems

    2. b.
      [only before noun] experiencing a lot of difficulties in life, or causing difficulties for other people

      a problem child/family


This is the British English definition of problem. View American English definition of problem