chef    umukoresha, umuyobozi
En-En dictionary 
chef    chief    (great) umuganwa
(sub) umutwāre
(to go to with trouble, complaint) gushengera, gushengerera
(to remove) gukōmbōra
(to take someone to for trial or accusation) gushengeza
En-En dictionary 
chef    headman    umutōza
En-En dictionary 
chef    leader    indōngōzi, umugabīsha, iremezo, umurōngōzi, umutegetsi
(to choose) kwātira
En-En dictionary 
assistant du chef    chief's assistant   (esp. in law enforcement) umurōngōzi
En-En dictionary 
isheferi (ama-  5  class 5
singular: i-,iri-
plural: ama-
  
administrative region, area (Fr. chefferi)
umukoresha (aba-  1  class 1
singular: umu-
plural: aba-
  
chef, boss, employer
umuyobozi (aba-  1  class 1
singular: umu-
plural: aba-
  
boss, chef, director