| Acronym | Meaning |
| LSE | Least Squares Estimate/Error - London School Of Economics - London Stock Exchange |
| PEST | UK Public Engagement With Science And Technology |
| CAC | California Association Of Criminalists - Chronic Asymptomatic [Disease] Carrier |
| ACL | Access Control List - Anterior Cruciate Ligament |
| YI | Yobi |
| TF | French Southern Territories (ISO 3166 Digram) -Task Force -Terafarad |
| IIT | Illinois Institute Of Technology - Indian Institutes Of Technology - Indiana Institute Of Technology |
| MP | Magic Points -Mauritius (FIPS 10-4 Country Code) -Member Of Parliament - Military Police - Missouri Pacific -Northern Mariana Islands (postal Symbol; ISO 3166 Digram) |
| SSGN | Nuclear-Powered Guided Missile Submarine (US Navy Hull Classification) |
| PA 6 | Nylon 6 (PolyAmide) (similarly For PA 11 |