| Acronym | Meaning |
| ERA | Earned Run Average - Engineering Research Associates - Equal Rights Amendment - English Racing Automobiles - European Railway Agency |
| USNOFS | U.S. Naval Observatory Flagstaff Station |
| AOL | America OnLine |
| IIRC | If I Recall/Remember Correctly |
| UIG | Uyghur Language (ISO 639-2 Code) |
| KITECH | Korean Institute Of Industrial Technology |
| KC | Kilocoulomb |
| UPTN | Universal Personal Telecommunications Number - Upper Peninsula Telehealth Network |
| HV | Upper Volta (ISO 3166 Digram; Obsolete 1984) |
| BPM | Beats Per Minute |