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activity

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noun American English pronunciation: activity /ækˈtɪvəti/ 
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singularactivity
pluralactivities
  1. 1
    [uncountable] things that people do

    These environmental changes are the result of human activity.

    Economic activity was greater during the first part of the year.

    Airline employees should always be on the watch for criminal activity.

  2. 2
    [countable] [usually plural] something that someone does in order to achieve a goal

    Employees should not engage in political activities without a manager's permission.

    She monitors the activities of federal law enforcement agencies.

    We plan to expand our business activities in East Africa.

  3. 3
    [countable] something that you do because you enjoy it or because it is interesting

    Guests can enjoy plenty of activities, like swimming, surfing, and horseback riding.

    leisure activities

  4. 4
    [uncountable] a situation in which people are busy doing different things

    On Saturdays, there's always lots of activity in the streets.

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