| Acronym | Meaning |
 | TZC | Tetrazolium Chloride |
| AAC | Army Air Corps (British Army) |
| NSG | National System For Geospatial-Intelligence |
| GMO | Genetically Modified Organism |
| AQ | American Samoa (FIPS 10-4 Territory Code) - Antarctica (ISO 3166 Digram) |
| ACE | Air Combat Emulator (computer Game) - Allied Command Europe - Armored Combat Earthmover - Automatic Computing Engine |
| WWW | World Wide Web |
| BGS | Bristol Grammar School - British Geographical Survey |
| YGO | Yu-Gi-Oh! |
| XVII | Seventeen (in Roman Numerals) |
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