原因
N4げんいん
[genin]
Definitions
1.noun (common) (futsuumeishi); noun or participle which takes the aux. verb suru
cause; origin; source
Example Sentences
事故の原因を調べています。
They are investigating the cause of the accident.
病気の原因がやっと分かった。
The cause of the illness was finally found.
失敗の原因は準備不足だったと思う。
I think the cause of the failure was lack of preparation.