| Acronym | Meaning |
 | RSPCA | Royal Society For The Prevention Of Cruelty To Animals |
| EE | Estonia (ISO 3166 Digram) -Electrical Engineering - Electrical Engineer |
| MLI | Mali (ISO 3166 Trigram) |
| MRS | Magnetic Resonance Spectroscopy |
| CDMSII | Cryogenic Dark Matter Search II |
| GRP | Graphite Reinforced Plastic |
| NIMA | National Imagery And Mapping Agency (became NGA) |
| TW | Republic Of China (Taiwan) (ISO 3166 And FIPS 10-4 Country Code Digram) - Terawatt |
| NS | Nanosiemens |
| AZ | Arizona (postal Symbol) - Azerbaijan (ISO 3166 Digram) |
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