理由 (Riyuu) is a Japanese noun meaning “reason, grounds, pretext, excuse”.
Meanings
- nounreason; grounds; pretext; excuse; motive
Examples
理由は誰も分からない。
No one can tell the reason.
理由がわかりかねます。
I fail to see the reason.
理由は以下のとおりである。
The reasons are as follows.
Sentences from Tatoeba (CC BY 2.0 FR).