activity

activitynoun

An activity is a thing that people do for a purpose or for pleasure, the state of being busy and full of action, or a natural process going on inside something.

1. thing you dosomething that people do for pleasure, exercise, or another particular purpose

   countable [C]

   • Swimming is her favorite activity.
   • The school offers many after-school activities.
   • Cooking is a fun activity for the whole family.
   • The teacher planned a new activity for the class.

   Collocations

   adjective + noun a fun activity, an outdoor activity, a leisure activity, a classroom activity

   verb + noun plan an activity, join an activity, organize an activity

   Synonyms hobby

2. being busythe state of being busy and full of action, with many things happening

   uncountable [U]

   • There was a lot of activity in the kitchen before the party.
   • The street was full of activity on market day.
   • Police noticed unusual activity near the building.

   Collocations

   phrase a lot of activity, signs of activity

   adjective + noun unusual activity, constant activity

   Antonyms stillness

3. natural processa natural process that is happening inside something, such as the body or the earth

   uncountable [U]

   • Doctors measured the electrical activity in his heart.
   • Scientists are watching the volcano for signs of activity.
   • Brain activity increases during dreaming.

   Collocations

   adjective + noun volcanic activity, brain activity, electrical activity, seismic activity