| Monobraue | unibrow |
| Monocoque | monocoque |
| Monografie | monograph |
| Monogramm | monogram |
| Mondbär | Asian black bear |
| Mondstaub | moondust |
| Monosemie | monosemy |
| Montblanc | Mont Blanc |
| Monözie | monoecy |
| monochrome | black-and-white |
| Monade | monad |
| Mondkrater | lunar crater |
| Mondphase | lunar phase |
| Monogamie | monogamy |
| Monographie | monograph treatise |
| Monosomie | monosomy |
| Monotonie | monotony monotonicity |
| Monstranz | monstrance |
| Monstrum | monster |
| Montage | assembly assemblage ensamblaje |