| Abbreviation | Definition |
|---|---|
| REAP | Read Example Annotate Paraphrase |
| REB | Rebroadcast |
| REBRO | Rebroadcast |
| REDI | Reporter Electronic Data Interchange |
| REDM | River's Edge Digital Media |
| REE | Radio Exterior España |
| REL | Rosen Electronics Letter |
| REM | Real Estate Magazine |
| REMI | Restriction Enzyme Mediated Integration |
| REPT | Repeated |
| RER | Rerun |
| RERA | Reclamation Era |
| RETRO | RETROspective |
| REU | Residential Equivalent Unit |
| REV | Revised |
| REWTS | Rubbing Elbows With The Stars |
| RF | Relevance Feedback |
| RFB | Radio Free Blogistan |
| RFD | Radical Faerie Digest |
| RFE | Radio Free Ethernet |