umuturagaro (imi-)     2  class 2
singular: umu-
plural: imi-
  
thunder, loud frightening noise
noise    urwamo
(loud, frightening) umuturagaro
(esp. of battle or strife) umuvurungano
(of earthquake, or approaching storm) umugigimo
(of rain, thunder) umuhīndo
(of wind, rain, running feet, etc.) igihīnda
(to make a big) kwāsana, kubomborana, kubugiriza, gusāma
(to make a lot) kuvurungana, kuyogora
(to make a loud frightening) guturagara
En-En dictionary 
thunder    umuturagaro, inkuba (refers to imaginary animal that makes the thunder)
(to ~) guturagara
(thunderstorm) ikivura
En-En dictionary