activity

play
noun ac·tiv·i·ty \ ak-ˈti-və-tē \

Definition of activity

plural activities
1 :the quality or state of being active :behavior or actions of a particular kind
  • physical activity
  • criminal activity
  • economic activity
2 :vigorous or energetic action :liveliness
  • a scene of excitement and activity
3 :natural or normal function: such as
a :a process (such as digestion) that an organism carries on or participates in by virtue of being alive
b :a similar process actually or potentially involving mental function; specifically :an educational procedure designed to stimulate learning by firsthand experience
4 :an active force
5 a :a pursuit in which a person is active
  • business activities
  • social activities
b :a form of organized, supervised, often extracurricular recreation
  • The camp offers hiking, swimming, and other activities.
6 :an organizational unit for performing a specific function; also :its function or duties
  • the restaurant inspection activity of the health department

Examples of activity in a Sentence

  1. The holidays always set off a lot of activity in our home.

  2. the sexual activity of married couples

  3. The police are now monitoring criminal activity in the area.

  4. She gets at least 30 minutes of physical activity every day.

  5. The instruments are used to detect volcanic activity on the island.

  6. We planned an activity for the children.

Recent Examples of activity from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'activity.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of activity

see active



ACTIVITY Defined for English Language Learners

activity

play
noun

Definition of activity for English Language Learners

  • : the state of being active : behavior or actions of a particular kind

  • : something that is done as work or for a particular purpose

  • : something that is done for pleasure and that usually involves a group of people


ACTIVITY Defined for Kids

activity

play
noun ac·tiv·i·ty \ ak-ˈti-və-tē \

Definition of activity for Students

plural activities
1 :energetic action
  • There is always activity around the holidays.
2 :something done especially for relaxation or fun Summer camp provides a variety of activities for kids.

Medical Dictionary

activity

play
noun ac·tiv·i·ty \ ak-ˈtiv-ət-ē \

medical Definition of activity

plural activities
1 :natural or normal function: as
a :a process (as digestion) that an organism carries on or participates in by virtue of being alive
b :a similar process actually or potentially involving mental function; specifically :an educational procedure designed to stimulate learning by firsthand experience
2 :the characteristic of acting chemically or of promoting a chemical reaction
  • the activity of a catalyst


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