| Acronym | Meaning |
| MT | Meitnerium |
| APC | Armoured Personnel Carrier - Armour Piercing Capped (ammunition) |
| MAS | NATO Military Agency For Standardisation |
| GR | Greece (FIPS 10-4 Country Code; ISO 3166 Digram) - Hail (METAR Code) |
| KK | Kazakh Language (ISO 639-1 Code) |
| JIVE | Joint Institute For VLBI (Very Long Baseline Interferometry) In Europe |
| DX | Dexterity (role-playing Games) -DeXtrorphan - Distant (radio) -D-Generation X (professional Wrestling) |
| CRM | Cardiac Rhythm Management - Customer Relationship Management |
| CTS | Clear-To-Send - Collective Training Standards - Communications Technology Service - Contract Technical Services - Conversation Time Sharing - COSMIC Top Secret |
| CH | Chieftain Tank -China (FIPS 10-4 Country Code) - Switzerland (ISO 3166 Digram; From Latin Confoederatio Helvetica) |