| Acronym | Meaning |
 | HM | Heard Island And McDonald Islands (ISO 3166 Digram; FIPS 10-4 Territory Code) |
 | GRAS | Generally Regarded As Safe (FDA List) |
 | BMA | British Medical Association |
 | FZFG | Freezing Fog (METAR Code) |
 | TMA | Texas Medical Association |
 | TMP | East Timor (ISO 3166 Trigram; Obsolete 2002) -Temporary |
 | TTZ | Tetrazolium |
 | PDN | Pull-Down Network |
 | CPA | Certified Public Accountant |
 | JH | Japan Highway Public Corporation |