English abbreviations from acy to ada
- ACY (Atlantic City International Airport)
- ACYF (Aid to Children, Youth, and Families)
- ACYG ((celestial object) Alpha CYGni, a class of rotating variable stars named after Alpha Cygni (Deneb), the archetype for the class)
- ACZ (Zabol Airport)
- AD (Aviation Machinist's Mate)
- A.D. (Anno Domini ("Year of Our Lord"))
- A-D (Analog to Digital)
- ADA (Americans with Disabilities Act … also American Diabetes Association)
