| Acronym | Definitions |
|---|---|
| MARIS | 2 |
| MARISAT | 3 |
| MARK | 3 |
| MARP | 2 |
| MARPOL | 4 |
| MARR | 3 |
| MARS | 28 |
| MART | 4 |
| MARV | 2 |
| MARVEL | 1 |
| Mary | 2 |
| MAS | 32 |
| MASA | 3 |
| MASC | 6 |
| MASCOT | 2 |
| MASER | 3 |
| MASF | 4 |
| MASH | 3 |
| MASI | 2 |
| MASINT | 3 |
| MASIS | 2 |
| MASL | 4 |
| MASM | 2 |
| MASP | 3 |
| MASS | 12 |
| MASSTER | 2 |
| MAST | 10 |
| MASTER | 4 |
| MASX | 1 |
| MAT | 25 |
(181 — 210 of 1522)