AAC

1. American Cement Corporation, stock exchange symbol.

plural AACs

1. abbreviationcountableinitialismuncountablefile formatInitialism of advanced audio coding.
2. abbreviationcountableinitialismuncountableInitialism of aerated autoclaved concrete.
3. abbreviationcountableinitialismuncountableaeronauticsInitialism of aeronautical approach chart.
4. abbreviationcountableinitialismuncountableInitialism of affirming Anglican catholicism.
5. abbreviationcountableuncountableaeronauticsAbbreviation of airborne aircraft carrier.
6. abbreviationcountableinitialismuncountableaeronauticsInitialism of aircraft armament change.
7. abbreviationcountableinitialismuncountableInitialism of Anno ante Christum, in the year before Christ.
8. abbreviationcountableinitialismuncountablegovernmentInitialism of anti-aircraft command.
9. abbreviationcountableinitialismuncountableInitialism of area advisory committee.
10. abbreviationcountableinitialismuncountableInitialism of augmentative and alternative communication.

1. abbreviationinitialismInitialism of American Alumni Council, now known as Council for Advancement and Support of Education.
2. abbreviationdatedinitialismInitialism of Association of American Colleges, now known as Association of American Colleges and Universities.
3. datedAustralian Air Corps, now known as Royal Australian Air Force
4. abbreviationinitialismInitialism of American Anglican Council.
5. abbreviationinitialismInitialism of Agility Association of Canada.
6. abbreviationinitialismInitialism of Alameda Arts Council.
7. abbreviationinitialismInitialism of Alaskan Air Command.
8. abbreviationinitialismInitialism of All-American Canal.
9. abbreviationinitialismInitialism of American Airlines Center.
10. abbreviationinitialismInitialism of American Alpine Club.
11. abbreviationinitialismInitialism of Amphibian Airplanes of Canada.
12. abbreviationinitialismInitialism of Anglo-American Corporation.
13. BritishEnglishUSabbreviationinitialismInitialism of Army Air Corps; Army Air Corps.
14. abbreviationinitialismInitialism of Army Apprentices College.
15. abbreviationinitialismInitialism of Association of Alabama Camps.
16. abbreviationinitialismInitialism of Atlanta Athletic Club.
17. abbreviationinitialismInitialism of Australian Agricultural Company.
18. abbreviationinitialismInitialism of Advanced Aircraft Corps.
19. abbreviationinitialismInitialism of Aerial Ambulance Company.
20. abbreviationinitialismInitialism of Aeronautical Advisory Council.
21. abbreviationinitialismInitialism of Aluminum Annodizers Council.
22. abbreviationinitialismInitialism of Allumnae Advisory Center.
23. abbreviationinitialismInitialism of American Academy of Criminalists.
24. abbreviationinitialismInitialism of American Archery Council.
25. abbreviationinitialismInitialism of American Association of Criminology.
26. abbreviationinitialismInitialism of American Atheist Center.
27. abbreviationinitialismgovernmentInitialism of Anti-aircraft Corps.
28. abbreviationinitialismInitialism of Association of American Choruses.
29. abbreviationinitialismInitialism of Australian Apprentiship Centre.
30. abbreviationinitialismInitialism of Australian Association of Chiropractors.
31. abbreviationhistoricalinitialismInitialism of Auto Avia Contruzione, Enzo Ferrari's first company.
32. abbreviationinitialismInitialism of Automotive Advertisers Council.
33. abbreviationinitialismInitialism of Auxiliary Artillery Corps.
34. abbreviationinitialismInitialism of Auxiliary Army Corps.