chaff    umuguruka, umurāyi
(fan to blow off) urutaro
(mixed with grain) ibikūmbi
(pile of chaff and grain) ubukūmbi
(to blow out) kugosōra
(to rub grain to take off) kuvūngura
En-En dictionary 
fan    (to blow off chaff) urutaro
En-En dictionary 
grain    impeke, intete, urutete
(a single) agatete
(place for spreading out) imbuga
(storage place) ikigega
(to crush before grinding) kuvūngurīsha
(to form) guhūnda
(to rub to take off chaff) kuvūngura
En-En dictionary 
sifter    (for chaff) agaseba
En-En dictionary 
urutaro (in-)     6  class 6
singular: uru-
plural: in-
  
fan (to blow out chaff)
kugosōra (-gosōye)     v    to blow out chaff
agaseba (udu-)     7  class 7
singular: aka-,aga-
plural: utu-,udu-
  
1. bubbling of water in spring, or boiling, 2. sifter to sift out chaff
kuvūngura (-vūnguye)   v    1. to crush, 2. to rub grain, 3. to take off chaff
blow    (vt) guhūha, guhūngabanya
(vi) guhūngabana
(air into ball) guhaga
(along) guheha
(be blown up) kuboboka
(hard) guhūhūta
(in wind) kuzūnga, kuzūngazūnga
(one's nose) kwīmyīra
(out chaff) kugosōra
(the fire) kwātsa
(up) gupfunereza
(with bellows) kuvuguta
En-En dictionary 
pile    ikirūndo
(of grain) amarwi
(of grain and chaff mixed) ubukūmbi
(of rocks) igihongo
(of wood) akarwi
En-En dictionary 
rub    gusīga
(bump so it doesn't swell) kunyīngisha, gushiringitira
(clothes) kunyukura
(eyes in order to see, esp. one who has conjunctivities) guhofōra
(grain to take off chaff) kuvūngura
(off dirt) guhungura
En-En dictionary 
igikūmbi (ibi-)     4  class 4
singular: iki-,ic-
plural: ibi-,ivy-
  
1. debris, 2. grain and chaff mixed
ubukūmbi     8  class 8
singular: ubu-
  
(no pl.) pile of mixed grain and chaff
umuguruka (imi-)     2  class 2
singular: umu-
plural: imi-
  
chaff
umurāyi (imi-)     2  class 2
singular: umu-
plural: imi-
  
chaff, pollen