| Acronym | Meaning |
| MS | Mano Sinistra (Latin |
| MACHO | MAssive Compact Halo Object |
| SATB | Soprano Alto Tenor Bass |
| LBW | Leg Before Wicket |
| RPM | Revolutions Per Minute |
| IUCN | International Union For The Conservation Of Nature And Natural Resources (World Conservation Union) |
| PCP | Phencyclidine - Pneumocystis Jiroveci Pneumonia (formerly Peumocystis Carinii) -Probabilistically Checkable Proof |
| MS | Millisiemens |
| GFDL | GNU Free Documentation License |
| IACREOT | International Association Of Clerks |