| Abbreviation | Definition |
|---|---|
| MWF | MetalWorking Fluid |
| MWFRS | Main Wind Force Resisting System |
| MXC | Mini Xerox Copier |
| MY | Model Year |
| myKT | my Knowledge Transfer |
| NA | Non-Antistatic |
| NA | Non-Asbestos |
| NABR | Name and Address Block Reader |
| NAEST | Navigation Aids and Equipment and Simulator Training |
| NANO3 | Nanography Third Level |
| NAO | Non-Asbestos Organic |
| NAOMI | New Arcade Operation Machine Idea |
| NAPS | Nissan Anti-Pollution System |
| NAS | New American Standard |
| NASCO | National Automotive Service Company |
| Natrl | Natural |
| NB | Non-Breaking |
| NBB | Non Blow Back |
| NBOR | Net Box Office Receipts |
| NBRI | Nail Base Roof Insulation |