dirtiness   dirt    umwānda, ico, ubucafu
(esp. on body) ubuhoma, imvyiro
(in water) ikirohe
(in water, milk) igitotsi
(to have dirt in water, milk) gutobeka
(to rubb off) guhungura
En-En dictionary 
ubuhoma     8  class 8
singular: ubu-
  
(no pl.) 1. dirt (esp. on body), 2. dirtiness
ubucafu   8  class 8
singular: ubu-
  
dirtiness
umwānda (imy-)     2  class 2
singular: umu-
plural: imi-
  
1. dirtiness, dirt, filth, 2. pollution