Pronunciation change

  • IPA (key): /ækˈtɪ.vɪ.ti/ or /ækˈtɪ.vɪ.tiː/ or /ækˈtɪ.və.ti/
  • (file)

Noun change

Singular
activity

Plural
activities

  1. (uncountable) When a person or animal has activity, it is active or lively.
    The sleeping dog did not show much activity.
  2. (countable) When you have a function to do, you have an activity.
    The child has many after-school activities.
    She participates in women's rights activities.