| monochrome | black-and-white |
| monochrom | monochrome monochromatic |
| Monobraue | unibrow |
| Monocoque | monocoque |
| Mononom | monomial |
| Monophobie | monophobia |
| Mönche | monkhood |
| Monogramm | monogram |
| Monosomie | monosomy |
| auxochrom | auxochromic |
| Autochrom | autochrome |
| Isochrone | isochrone |
| Loxodrome | rhumb line |
| Mondhorn | fire dog |
| Mondviole | honesty |
| Monochasium | monochasium |
| Monogerman | germane |
| Monografie | monograph |
| Monophysit | Monophysite |
| Monopoly | Monopoly |