| Subject | English | Thesaurus |
| USA | Because of the Ultra Low Level of the quality of the product, Special High Intensity Testing is required | BULLSHIT |
| telecom., abbr. | Cell Level Atm Services Simulator | CLASS |
| abbr. | College Level Examination Program | CLEP |
| abbr., file.ext. | High Level Automatic Scheduling Program | HASP |
| abbr., IT | High-Level Language/Application Program Interface | HLLAPI |
| USA | Levels Of Excellence Achievement Program | LEAP |
| progr. | loop-level parallelism | data parallelism (ssn) |
| ed., abbr. | Middle Level Alternative Program | MLAP |
| busin., abbr. | Multi Level Affiliate Program | MLAP |
| abbr. | network service level | network service layer (ssn) |
| abbr., mil., commer. | Program-Level Integrated Product Team | PIPT |
| abbr., progr. | transaction services level | transaction service level (ssn) |
| abbr., progr. | transaction services level | transaction services layer (ssn) |
| abbr., progr. | transaction services level | transaction service layer (ssn) |
| avia., Canada | transition level | The lowest flight level available for use above the transition altitude |
