ACTIVITY

'Activity' may mean:

★ action, in general

★ ''Activity'', an alternative name for the game charades

★ ''Activity'', a task.

★ ''Activity'', the ability of a piece to influence the game in chess

★ ''Activity'', the rate of a catalytic reaction, such as enzyme activity, in physical chemistry and enzymology

★ activity (chemistry), the effective concentration of a solute for the purposes of mass action

★ activity (project management)

★ activity (radioactivity), the number of disintegrations per second

★ activity (software engineering)

★ activity (soil mechanics)

★ activity diagram, a diagram representing activities in UML

★ ''HMS Activity'', an aircraft carrier of the Royal Navy