| Abbreviation | Definition |
|---|---|
| MEDSERSRNT | Chief Medical Service Warrant |
| MEDSERSRNT | ief Medical Service Warrant |
| MEFA | Metalsmith Fireman Apprentice |
| MEFA | talsmith Fireman Apprentice |
| MEFN | etalsmith Fireman |
| MEFN | Metalsmith Fireman |
| MEFR | Metalsmith Fireman Recruit |
| MEFR | talsmith Fireman Recruit |
| MEG1 | Metalsmith (shipboard) Petty Officer 1st Class |
| MEG1 | talsmith (shipboard) Petty Officer 1st Class |
| MEG2 | Metalsmith (shipboard) Petty Officer 2nd Class |
| MEG2 | talsmith (shipboard) Petty Officer 2nd Class |
| MEG3 | Metalsmith (shipboard) Petty Officer 3rd Class |
| MEG3 | talsmith (shipboard) Petty Officer 3rd Class |
| MEGC | talsmith (shipboard) Chief Petty Officer |
| MEGFA | talsmith (shipboard) Fireman Apprenctice |
| MEGFN | talsmith (shipboard) Fireman |
| MEGFR | talsmith (shipboard) Fireman Recruit |
| MES1 | Metalsmith (sheet Metal) Petty Officer 1st Class |
| MES1 | talsmith (sheet Metal) Petty Officer 1st Class |