AAR
| Abbreviation | Meaning | Tamil Meaning | Category |
|---|---|---|---|
| AAR | Association Of American Railroads | - | Computer Acronyms(common) |
| AAR | Accumulation-area Ratio (for Glaciers) | - | Computer Acronyms(common) |
| AAR | Alkali-aggregate Reaction | - | Computer Acronyms(common) |
| AAR | At Any Rate | - | ISO Country Codes |
| AAR | After-Action Review - Association Of American Railroads | - | Astronomy |
| AAR | Afar Language (ISO 639-2 Code) | - | Astronomy |
| AAR | Affirmative Action Representative | - | Business and Finance |