| Acronym | Meaning |
| NIB | New In Box (Internet Auction/trading Listings) |
| FSSP | Families Of Structurally Similar Proteins |
| RTT | Round Trip Timing |
| GUF | French Guiana (ISO 3166 Trigram) |
| RI | Rhode Island (postal Symbol) |
| AMSU | Association For Managers In Students' Unions - Aviation Mat?riel Screening Unit |
| Y | Yocto |
| BAK | Bashkir Language (ISO 639-2 Code) |
| ES | Einsteinium - Exasecond |
| DART | Disaster Assistance Response Team - Dublin Area Rapid Transit |