| Rumba | rumba |
| Zumba | Zumba |
| Rum | rum |
| Rumpf | fuselage hull torso |
| Lumb | cusk |
| Rhumb | rhumb |
| Mumbai | Mumbai |
| Umbau | alteration conversion altered section reorganization |
| Umbra | umbra umber |
| tumb | dim naive slow stupid |
| Mamba | mamba |
| Bemba | Bemba Chibemba Chiwemba |
| Samba | samba |
| Zamba | Zamba |
| Crumble | crumble |
| Struma | goitre |
| Trumeau | pier glass |
| Trumpf | trump |
| wrumm | vroom |
| Brummbär | crabber curmudgeon grouch growler grumbler |