► 名詞
所為 [(1)せい] [coll] meaning: because rank: 1
☆ あいつが手抜きをした所為で事故が起こった ⇨ The accident happened because he had cut corners (☛ Only when the result is bad)
☆ あいつの所為で全ては台無しになった ⇨ Everything was ruined because of him (☛ Only when the result is bad)
所為 [(1)せい] [所為にする] [coll] meaning: blame rank: 1
☆ 人の所為にするな！ ⇨ Don’t make it someone else’s fault. Don’t blame others
☆ 社長は業績の悪さを全て景気の所為にした ⇨ The CEO put all the blames of the bad performance on the economy
所為 [(1)せい] [coll] meaning: fault rank: 1
☆ こんなことになったのは全てお前の所為だ ⇨ It is your fault that all this mess has happened
More examples: