Noun

activity (plural activities)

1. The state or quality of being active; nimbleness; agility; vigorous action or operation; energy; active force; as, an increasing variety of human activities.

   Pit row was abuzz with activity.

2. something done as an action or a movement

   The activity for the morning was a walk to the store.

3. something done for pleasure or entertainment, especially one involving movement or an excursion.

   Quilting can be a fun activity.

4. Use (of internet, playstation, bank account etc.)

Synonyms

• See also Wikisaurus:activity

Antonyms

• rest
• passivity

Activity

Activity may mean:

• Action (philosophy), in general
• The Aristotelian concept of energeia, Latinized as actus
• Physical exercise
• Activity (UML), a major task in Unified Modeling Language
• Activity diagram, a diagram representing activities in Unified Modeling Language
• Activity, an alternative name for the game charades
• Activity, a planned or organized thing to do (ex: adventure-based activity or teambuilding activity)
• Activity, a task
• Activity, the ability of a piece to influence the game in chess
• Activity, the rate of catalytic activity, such as enzyme activity (enzyme assay), in physical chemistry and enzymology
• Activity (chemistry), the effective concentration of a solute for the purposes of mass action
• Activity (project management)
• Activity (radioactivity), radioactive decay#Radioactive decay rates, the number of radioactive decays per second
• Activity (software engineering)
• Activity (soil mechanics)
• Activity, a board game by Piatnik & Söhne
• HMS Activity (D94), an aircraft carrier of the Royal Navy
• in military parlance, a military agency or unit (e.g. Intelligence Support Activity)
• In Internet Explorer 8 Beta 1 a new feature called Activities was included and later renamed to Accelerator