| Acronym | Meaning |
| GTM | Guatemala (ISO 3166 Trigram) |
| XAU | Gold Troy Ounce (ISO 4217 Currency Code) |
| TTTEAF | Thomas The Tank Engine And Friends |
| UR | Urdu Language (ISO 639-1 Code) |
| CCC | Corpus Christi College |
| NPDI | New Product Development And Introduction |
| I | Iodine - One (in Roman Numerals) |
| ACDC | Alternating Current Direct Current |
| SUR | Suriname (ISO 3166 Trigram) |
| AE | Armed Forces Africa/Canada/Europe/Middle East (postal Symbol) - United Arab Emirates (ISO 3166 Digram; FIPS 10-4 Country Code) |