RSN
| Abbreviation | Meaning | Tamil Meaning | Category |
|---|---|---|---|
| RSN | Radio SuperNova | - | Atmospheric Research Center |
| RSN | Real Soon Now | - | Chemistry |
| RSN | Real Soon Now | - | Human Genome |
| RSN | Real Soon Now | - | Sms Text Smileys and Emoticons |
| RSN | Real Soon Now | - | ISO Country Codes |
| RSN | Real Soon Now (coined By Author Jerry Pournelle) | - | Astronomy |