| Acronym | Meaning |
| PI | Pebi |
| OCO | Oort Cloud Object |
| PIN | Personal Identification Number |
| DPA | UK Defence Procurement Agency |
| ARS | Agricultural Research Service -Argentine Peso (ISO 4217 Currency Code) |
| FACA | (US) Federal Advisory Committee Act |
| GUF | French Guiana (ISO 3166 Trigram) |
| COROT | COnvection |
| TED | Technology Entertainment Design Prize |
| SOUTHAG | Southern Army Group |