| Acronym | Meaning |
| CV | Chuvash Language (ISO 639-1 Code) |
| HY | Armenian Language (ISO 639-1 Code) |
| OSETI | Optical SETI |
| TGIF | Thank God It's Friday |
| XCBL | XML Common Business Library |
| IO | British Indian Ocean Territory (ISO 3166 Digram; FIPS 10-4 Territory Code) |
| FOO | Forward Observation Officer |
| CLRP | College Loan Repayment Program |
| HAZ | Heat-Affected Zone |
| ACORN | Association Of Community Organizations For Reform Now |