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The following statistics are based on the British National Corpus, so they are representative for the British English.

Usage statistics for the noun activity:

spoken English20.38%written English79.62% imaginative writing10.82%informational writing89.18%

Distribution of usage frequency for the most common synonyms of the noun activity:

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Definition of the noun activity

What does activity mean as a name of something?

Activity is one of the top 1000 most common nouns. It is used mostly in informational writing, being one of the top 1000 most common nouns in informational written English.

noun - plural: activities

  1. any specific behavior
  2. the state of being active
    • example: his sphere of activity
    • lexical domain: States - nouns denoting stable states of affairs
    • synonyms of activity: action / activeness
    • antonym of activity: inactivity
    • more generic word: state = the way something is with respect to its main attributes
    • more specific words:
      • agency = the state of being in action or exerting power
      • busyness / hum = the state of being or appearing to be actively engaged in an activity
      • behaviour / behavior = the action or reaction of something (as a machine or substance) under specified circumstances
      • extravasation / eructation / eruption = pouring out fumes or lava
      • operation = the state of being in effect or being operative
      • overdrive = the state of high or excessive activity or productivity or concentration
      • play = a state in which action is feasible
      • swing = a state of steady vigorous action that is characteristic of an activity
    • attribute: active = erupting or liable to erupt
  3. an organic process that takes place in the body
  4. (chemistry) the capacity of a substance to take part in a chemical reaction
  5. a process existing in or produced by nature (rather than by the intent of human beings)
    • example: volcanic activity
    • lexical domain: Natural Processes - nouns denoting natural processes
    • synonyms of activity: action / natural action / natural process
    • more generic terms: physical process / process = a sustained phenomenon or one marked by gradual changes through a series of states
    • more specific terms:
      • radiation = the spread of a group of organisms into new habitats
      • absorption = the process in which incident radiated energy is retained without reflection or transmission on passing through a medium
      • acidification = the process of becoming acid or being converted into an acid
      • adiabatic process = any process that occurs without gain or loss of heat
      • aeration = the process of exposing to air
      • antiredeposition = the process of preventing redeposition
      • capture = any process in which an atomic or nuclear system acquires an additional particle
      • capture = a process whereby a star or planet holds an object in its gravitational field
      • centrifugation = the process of separating substances of different densities by the use of a centrifuge
      • chemical process / chemical action / chemical change = any process determined by the atomic and molecular composition and structure of the substances involved
      • chromatography = a process used for separating mixtures by virtue of differences in absorbency
      • concretion = the formation of stonelike objects within a body organ
      • condensation = the process of changing from a gaseous to a liquid or solid state
      • convection = the vertical movement of heat or other properties by massive motion within the atmosphere
      • coagulation / clotting / curdling = the process of forming semisolid lumps in a liquid
      • decay = the process of gradually becoming inferior
      • demagnetisation / demagnetization = the process of removing magnetization
      • desorption = changing from an adsorbed state on a surface to a gaseous or liquid state
      • diffusion = the process in which there is movement of a substance from an area of high concentration of that substance to an area of lower concentration
      • disintegration / dissolution = separation into component parts
      • distillation / distillment = the process of purifying a liquid by boiling it and condensing its vapors
      • drift = the gradual departure from an intended course due to external influences
      • effervescence = the process of bubbling as gas escapes
      • electrophoresis / dielectrolysis / cataphoresis / ionophoresis = the motion of charged particles in a colloid under the influence of an electric field
      • establishment / ecesis = the process by which a plant or animal becomes established in a new habitat
      • extinction = the reduction of the intensity of radiation as a consequence of absorption and radiation
      • extraction = the process of obtaining something from a mixture or compound by chemical or physical or mechanical means
      • feedback = the process in which part of the output of a system is returned to its input in order to regulate its further output
      • filtration = the process whereby fluids pass through a filter or a filtering medium
      • flocculation = the process of flocculating
      • flow = any uninterrupted stream or discharge
      • formation = natural process that causes something to form
      • fossilisation / fossilization = the process of fossilizing a plant or animal that existed in some earlier age
      • geological process / geologic process = a natural process whereby geological features are modified
      • solidification / solidifying / hardening / curing / set = the process of becoming hard or solid by cooling or drying or crystallization
      • inactivation = the process of rendering inactive
      • ion exchange = a process in which ions are exchanged between a solution and an insoluble (usually resinous) solid
      • ionisation / ionization = the process of ionizing
      • leaching / leach = the process of leaching
      • magnetic induction / magnetisation / magnetization = the process that makes a substance magnetic
      • materialisation / materialization = the process of coming into being
      • nuclear reaction = a process that alters the energy or structure or composition of atomic nuclei
      • opacification = the process of becoming cloudy or opaque
      • oscillation = the process of oscillating between states
      • oxygenation = the process of providing or combining or treating with oxygen
      • pair production / pair formation / pair creation = the transformation of a gamma-ray photon into an electron and a positron when the photon passes close to an atomic nucleus
      • phase transition / physical change / phase change / state change = a change from one state (solid or liquid or gas) to another without a change in chemical composition
      • precession of the equinoxes = a slow westward shift of the equinoxes along the plane of the ecliptic caused by precession of the Earth's axis of rotation
      • release = a process that liberates or discharges something
      • saltation = the leaping movement of sand or soil particles as they are transported in a fluid medium over an uneven surface
      • scattering = the physical process in which particles are deflected haphazardly as a result of collisions
      • sericulture = raising silkworms in order to obtain raw silk
      • sink = a process that acts to absorb or remove energy or a substance from a system
      • soakage / soaking / soak = the process of becoming softened and saturated as a consequence of being immersed in water
      • softening = the process of becoming softer
      • sorption = the process in which one substance takes up or holds another
      • source = a process by which energy or a substance enters a system
      • rigidification / rigidifying / stiffening = the process of becoming stiff or rigid
      • stimulation = the effect of a stimulus
      • ecological succession / succession = the gradual and orderly process of change in an ecosystem brought about by the progressive replacement of one community by another until a stable climax is established
      • survival of the fittest / natural selection / selection / survival = a natural process resulting in the evolution of organisms best adapted to the environment
      • synergism / synergy = the working together of two things (muscles or drugs for example) to produce an effect greater than the sum of their individual effects
      • temperature change = a process whereby the degree of hotness of a body (or medium) changes
      • transduction = the process whereby a transducer accepts energy in one form and gives back related energy in a different form
      • transpiration = the passage of gases through fine tubes because of differences in pressure or temperature
      • vitrification = the process of becoming vitreous
  6. the trait of being active; moving or acting rapidly and energetically

Alternative definition of the noun activity


  1. The state or quality of being active; nimbleness; agility; vigorous action or operation; energy; active force; as, an increasing variety of human activities.
  2. something done as an action or a movement
  3. something done for pleasure or entertainment, especially one involving movement or an excursion.
  4. Use (of internet, playstation, bank account etc.)

Specialised definition of the noun activity

Glossary of sports

something that someone does (2006. Dictionary of Sport and Exercise Science. A&C Black Publishers Ltd)

the characteristic behaviour of a chemical (2006. Dictionary of Sport and Exercise Science. A&C Black Publishers Ltd)


"Activity" is a composition.


  1. Activity a.k.a. Thermodynamic activity: In chemical thermodynamics, activity is a measure of the “effective concentration” of a species in a mixture, in the sense that the species' chemical potential depends on the activity of a real solution in the same way that it would depend on concentration for an ideal solution.
  2. Activity: An activity in Unified Modeling Language is a major task that must take place in order to fulfill an operation contract.

Phrases with Activity

  1. Activity Trap
  2. sex activity
  3. human activity
  4. sexual activity
  5. social activity
  6. Hive of Activity
  7. optical activity
  8. sensory activity
  9. business activity
  10. creative activity
  11. catalytic activity
  12. offensive activity
  13. commercial activity
  14. government activity
  15. spare-time activity
  16. subversive activity
  17. educational activity
  18. bond-trading activity
  19. intelligence activity
  20. agglutinating activity

View more phrases with the word Activity in thesaurus!

Printed dictionaries and other books with definitions for Activity

Click on a title to look inside that book (if available):

Google previewStrategic Organizational Diagnosis and Design (2004)

The Dynamics of Fit by Richard M. Burton, Borge Obel

A firm whose primary activity is the conversion of raw materials, parts and subassemblies into finished products for use by a customer. The manufacturing transformation requires equipment and personnel. It may be either capital or labor ...

Google previewHome-Based Business For Dummies (2011)

by Paul Edwards, Sarah Edwards, Peter Economy

whether a particular activity is a business or a hobby. In fact, a person's knowledge or effort in managing a successful enterprise has been considered by the courts in several cases. Similarly, if the home-based busi- nessperson has retained ...

Google previewPaediatric Exercise Science and Medicine (2008)

by Neil Armstrong, Willem van Mechelen

Physical activity is a complex behaviour, comprising various dimensions.

Moderate intensity activity refers to a level of 3–6 METS in adults 5 and...

Google previewNutritional Epidemiology (2013)

by Walter Willett

hysical activity is the most important determinant of between-person variation in total energy expenditure (see Chapter 11) after...

Physical activity is a complex behavior that includes multiple dimensions such as type, duration, frequency, and intensity.

Google previewTheatre of Exile (2015)

by Horacio Czertok

The activity is the reason for the antagonist being there, and not the exercise as such,

Google previewExercise Therapy (2009)

Prevention and Treatment of Disease by John Gormley, Juliette Hussey

One of the greatest obstacles to validating field methods of assessing habitual physical activity is a lack of an adequate criterion to which techniques may be compared. Doubly labelled water (DLW) is considered the gold standard for the ...

Google previewThe Wisconsin State Constitution (1997)

A Reference Guide by Jack Stark

Thus, litigation about whether an activity is a lottery has always turned on whether there was consideration. "Consideration" is "a disadvantage to the one party or an advantage ...

Google preview2008 Physical Activity Guidelines for Americans (2008)

Be Active, Healthy, and Happy!

Vigorous-intensity activity is a 7 or 8. For More Information See Appendix 1 for more information on using absolute or relative intensity. The Guidelines for adults refer to absolute intensity because most studies demonstrating lower risks of ...

Google previewEncyclopedia of Obesity (2008)

J - Z by Kathleen Keller

PHysiCal aCtivity There is strong evidence of the health benefits of physical activity including improvements in longevity, cardiovascular diseases (CVDs), CVD risk factors, diabetes, obesity, osteoporosis, immune functioning, certain types of ...

Google previewEncyclopedia of Creativity (1999)

by Mark A. Runco, Steven R. Pritzker

umane creativity includes any creative activity that promotes humane values and goals, humane communication ...

Google previewEncyclopedia of Family Health (2011)

by Martha Craft-Rosenberg, Shelley-Rae Pehler

Health-related fitness focuses on achieving optimal health through physical activity while preventing disease associated with a sedentary lifestyle: It is comprised of cardiovascular fitness, muscular fitness—including endurance, strength, and ...

Google previewInternational Dictionary of Management (1980)

by Hano Johannsen, G.Terry Page

activity 1 decision analysis and relations analysis. Activities analysis is used to establish what are the key activities in the company, as distinct from generalized assumptions. activity. 1. An operation or work activity in critical path planning or ...

Google previewEncyclopedia of Library and Information Science (2000)

Volume 67 (Supplement 30) by Allen Kent

then make duplicates of the resource and let the first activity use the original resource and the second activity use duplicate ...

Google previewThe Encyclopedia of the Back and Spine Systems and Disorders (2007)

by Mary Harwell Sayler, Arya Nick Shamie

activity, daily 5 multistoried buildings with stairs, and social events involving activities offer options too. Statistics and Studies More than half of the adults and one-third of the adolescents in America do less physical activities than needed to ...

Online dictionaries and encyclopedias with entries for Activity

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Photos about Activity

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If you need related images for an article or a report, you can download stock photos:
Small photo of Senior woman practicing nordic walking on sea shore, drinking fresh water after activity. Elderly female enjoying sunny summer day. Healthy active retirement age.Small photo of Senior woman practicing nordic walking on sea shore, drinking fresh water after activity. Elderly female enjoying sunny summer day. Healthy active retirement age.Small photo of Senior woman practicing nordic walking on sea shore, drinking fresh water after activity. Elderly female enjoying sunny summer day. Healthy active retirement age.Small photo of Happy full family - father, mother, baby son walk with fun along edge of sunset sea surf on black sand beach. Active parents and people outdoor activity on summer holiday with children on Bali islandSmall photo of Skateboard Extreme Sport Skater Park Recreational Activity ConceptSmall photo of Active woman relaxing after run on cruise ship looking at the sea during summer holidays. Asian runner girl wearing smartwatch heart rate activity monitor living a healthy lifestyle.Small photo of Be Active Energetic Lively Vigorous Action Activity Concept More...

Video language resources about Activity

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View more videos about optical activity and Business Activity.

See also the pronunciation examples of Activity!

Sign language

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Quotes about Activity

Enjoyment is not a goal, it is a feeling that accompanies important ongoing activity. (Paul Goodman)
more quotes about activity...

Scrabble value of A1C3T1I1V4I1T1Y4

The value of this 8-letter word is 16 points. It is included in the first and second editions of the Official Scrabble Players Dictionary.

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