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Act or ACT may refer to:

Arts and entertainment[edit]

Businesses and organisations[edit]


Educational institutions[edit]

Government and military[edit]

Professional associations[edit]

Sports organizations[edit]

Other organizations[edit]




  • Act in philosophy is a verifiable (actual) form in Aristotle's Theory of Potentiality and actuality, or "Act and Potency"; e.g., since the material, water in the fluid state, is potentially steam, it has a hidden but real potency for steam, of which the live, perceptible steam is the act, or completed form, in the generation of steam by boiling water

Science, technology, and mathematics[edit]



Other uses in science, technology, and mathematics[edit]

Other uses[edit]

  • ACT (test), a college placement exam in the US
  • ACT mouthwash, produced by Chattem
  • Act or Acts, an obsolete name for the defence of theses at the University of Oxford and University of Cambridge
  • Acting (rank), in the military when someone assumes a higher rank temporarily
  • Achterhooks (ISO 639-3 language code ACT)

See also[edit]