| Marodeur | marauder |
| Marder | Mustelidae marten |
| marode | indisposed |
| Marker | highlighter |
| Marone | sweet chestnut |
| Marter | agony |
| Moder | decay mould mustiness |
| Saboteur | saboteur |
| Malheur | misfortune mishap |
| Masseur | masseur |
| Amarone | Amarone |
| Marcius | Marcius |
| Mare | mare |
| Mariaburg | Maryborough |
| Marlene | Marlene |
| Marne | Marne |
| Maroon | maroon |
| Maroon- | maroon |
| Marosch | Mureș |
| Marotte | antic bee in your bonnet |