PSI
| Abbreviation | Meaning | Tamil Meaning | Category |
|---|---|---|---|
| PSI | Pollution Standard Index | - | Computer Acronyms(common) |
| PSI | Pounds Per Square Inch | - | Computer Acronyms(common) |
| PSI | Pounds Per Square Inch | - | Organizations |
| PSI | Pounds Per Square Inch (Static Pressure) | - | Organizations |
| PSI | Power Static Inverter | - | Organizations |
| PSI | Pounds Per Square Inch | - | SMS Chat and Text |
| PSI | Portable Source Initiative | - | Astronomy |
| PSI | Pounds Per Square Inch | - | Business and Finance |
| PSI | Plan Shear Indicator | - | Business and Finance |