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challenge - definition and synonyms


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verb [transitive] challenge pronunciation in American English /ˈtʃæləndʒ/
Word Forms
present tense
present participlechallenging
past tensechallenged
past participlechallenged
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  1. 1
    to question whether something is true, accurate, or legal
    No one has challenged the assumptions that are made in the report.
    This decision is likely to be challenged by the oil companies.
    challenge someone on something: They’re not likely to challenge us on any of the details.
    challenge someone to do something: We challenged the company to prove that its system was safe.
    1. a.
      to refuse to accept someones authority
      The president has accused the provincial government of challenging his leadership.
  2. 2
    to invite someone to compete or fight
    challenge someone to something: The girls challenged the boys to a game of basketball.
  3. 3
    to test someones skill and abilities
    My present job doesn’t really challenge me.
    It is a problem that has intrigued and challenged me for many years.
  4. 4
    [usually passive] if you are challenged by someone, they ask you who you are and why you are in a particular place
    We were immediately challenged by armed guards.


a course of study which is much shorter than a university course and focuses on the skills you need for a job, especially computer-related skills

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an ancient Roman system of underfloor heating, used to heat houses with hot air; from the Latin 'hypocaustum'

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