| Acronym | Meaning |
| DXM | DeXtroMethorphan |
| SM | Samoan Language (ISO 639-1 Code) |
| MM | Military Medal -Myanmar (ISO 3166 Digram) - Two Thousand (in Roman Numerals) |
| NEX | Navy EXchange |
| LUCA | Last Universal Common Ancestor |
| NIAID | National Institute Of Allergies And Infectious Disease |
| KI | Gikuyu Language (ISO 639-1 Code) |
| QPS | Quark Publishing System |
| HSC | High School Certificate (as Used In New South Wales) |
| MEX | Mexico (ISO 3166 Trigram) |