| Acronym | Meaning |
| PLUTO | Pipe Line Under The Ocean |
| COS | Corsican Language (ISO 639-2 Code) - Cosine |
| APS | American Physical Society - Antiphospholipid Antibody Syndrome |
| ESL | English As A Second Language |
| AS | American Samoa (postal Symbol; ISO 3166 Digram) - Australia (FIPS 10-4 Country Code) |
| LV | Latvian Language (ISO 639-1 Code) |
| HVP | HarborView Properties - High Vacuum Process - Hydrolized Vegetable Protein |
| KM | Khmer Language (ISO 639-1 Code) - Kilometre |
| MOND | Modified Newtonian Dynamics |
| AID | U.S. Agency For International Development |