| Acronym | Meaning |
| PLUTO | Pipe Line Under The Ocean |
| CVT | Continuously Variable Transmission |
| PL | Ice Pellets (new Style METAR Code) -petalitre -Phase Line (Co-ordination Line) -Poland (ISO 3166 And FIPS 10-4 Country Code Digram) |
| ARE | UK Admiralty Research Establishment (?1991) -United Arab Emirates (ISO 3166 Trigram) |
| MLB | Major League Baseball |
| ZA | Zeptoampere |
| IIT | Illinois Institute Of Technology - Indian Institutes Of Technology - Indiana Institute Of Technology |
| CSERIAC | (U.S. DoD) Crew Systems Ergonomics Information Analysis Center |
| UZB | Uzbek Language (ISO 639-2 Code) |
| CHIPS | Cosmic Hot Interstellar Plasma Spectrometer |