| Abbreviation | Definition |
|---|---|
| AM | Antemeridian Meaning |
| AM | Anti Meridiem |
| AM | aria Montgomery |
| AM | Arun Mohan |
| AM | Aspect Modality |
| AM | Aspiring Manager |
| AM | Assembly Minister |
| AM | Assistant Minister |
| AM | Authn Method |
| AM | Awakenings Mission |
| AM | Away Message |
| AMA | Accurate Meticulous And Affordable |
| AMA | Advanced Medical Applications |
| AMA | Advanced Motion Acceleration |
| AMA | After My Ass |
| AMA | All Measurements Approximate |
| AMA | American Misogynistsamp Amp |
| AMA | Amy Michelle And Aaron |
| AMA | Analysis of Main Aggregates |
| AMA | Anhydrous Morphine Alkaloid |