SL
| Abbreviation | Meaning | Tamil Meaning | Category |
|---|---|---|---|
| SL | (Comet) Shoemaker-Levy / SpaceLab | - | Atmospheric Research Center |
| SL | Sea Level | - | Organizations |
| SL | Seal | - | Organizations |
| SL | Shelf Life | - | Organizations |
| SL | Sound Level | - | Organizations |
| SL | SPacelab | - | Organizations |
| SL | Second Life | - | ISO Country Codes |
| SL | Sierra Leone (ISO 3166 And FIPS 10-4 Country Code Digram) -Start Line | - | Astronomy |
| SL | Slovenian Language (ISO 639-1 Code) | - | Astronomy |
| SL | sublingual | - | Pharmacy Abbreviations |