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

verb [transitive] American English pronunciation: involve /ɪnˈvɑlv/ 
Word Forms
present tense
present participleinvolving
past tenseinvolved
past participleinvolved
  1. 1
    to include something as a necessary part of an activity, event, or situation

    The course involves a great deal of hard work.

    Most research and development projects involve some element of risk.

    involve doing something:

    The job involved working with a software development team.

  2. 2
    to include or affect someone or something in an important way

    Forty-six vehicles were involved in the accident.

    There are reports of a violent incident involving local inhabitants and U.S. troops.

  3. 3
    to encourage or allow someone to take part in something

    It's crazy to make these changes without involving the students.

    involve someone in something:

    The goal is to involve workers in the decision-making process.

    1. a.
      to choose to take part in something
      involve yourself in something:

      It's best not to involve yourself in other people's private affairs.

  4. 4
    to put someone into a situation in which they must do something
    involve someone in something:

    This won't involve you in any extra work.

    involve someone in doing something:

    Taking part in the campaign might involve you in getting arrested.

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