| Abbreviation | Definition |
|---|---|
| ACLU | Anti-Constitution Liars Union |
| ACLU | Anything Christian Looks Unlawful |
| ACLU | Arab Countries Lie Universally |
| ACLU | Association for Coarsening Life Utterly |
| ACLU | Atheist Communists Liberating Ungodliness |
| ACLU | Atheists Community Leaders Unite |
| ACLU | Atheists Controlled Liberal Union |
| ACLU | Atheists, Communists, and Liberals United |
| ACME | A Company that Makes Everything |
| ACME | Alltime Crappiest Machine Ever |
| ACME | Anyone Can Make Enemies |
| ACO | A Crappy Observer |
| ACOS | Anti-Capitalist Operating System |
| ACP | Alarm Clock Purgatory |
| ACPI | All Chips Permanently Incinerated |
| ACR | A Crappy Ride |
| ACR | Alfa Core Rules |
| ACRA | Automated Club Romance Analyzer |
| ACRG | Animaniacs Cultural Reference Guide |
| ACRONYM | A Coded Rendition Of Names Yielding Meaning |