Other
- Accusative case, the grammatical case used to mark the direct object of a transitive verb
- Advanced Cultural Competence, from Culture to Advanced Cultural Competence, a model developed within the CIMIC Centre of Excellence
- Advent Children Complete, the director's cut of the 2005 film Final Fantasy VII Advent Children
- Air Combat Command, United States Air Force
- Air Component Commander of the Royal Australian Air Force
- Allied Control Commission
- American Country Countdown, weekly syndicated radio program
- Annenberg Center for Communication, University of Southern California
- Antarctic Circumpolar Current, an ocean current
- Anthropogenic climate change, a.k.a. anthropogenic global warming, climate change caused by humans
- Anti-Capitalist Convergence, organizations which coordinated activities by the social justice, anarchist and environmentalist anti-capitalists
- Arab Cooperation Council, international economic organization
- Army Catering Corps, British Army
- Ascending chain condition, a condition in commutative algebra
- Asian Cultural Council, New York-based foundation
- Assistant Chief Constable, a British police rank
- Azerbaijanis' Cultural Center, a non-governmental organisation in Marneuli, Georgia
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