| Acronym | Definition |
|---|
| L1➣Level 1 (cache on or near processor die) |
| L1➣Native Language |
| L1➣Layer 1 (physical/electrical interface) |
| L1➣Link 1 (GPS, aviation) |
| L1➣League 1 (English football league) |
| L1➣Leave One |
| L1➣First Lumbar Vertebra (anatomy) |
| L1➣Lower One (business/investing; science) |
| L1➣Language One (native language) |
| L1➣GPS Frequency (1575.42 MHz) |
| L1➣LineOne (UK ISP) |
| L1➣Local Interconnect |
| L1➣First Sun-Earth Libration (Lagrange) Point |