理由

riyuu

noun★Beginner💡 reason

general

A cause, explanation, or justification for something.

彼女が怒っている理由は分かりますか？

Do you know why she is angry?

その決定の理由を説明してください。

Please explain the reason for that decision.

💡

Can be used to refer to both positive and negative causes.

Collocations

理由があるto have a reason理由を説明するto explain the reason理由を聞くto ask for the reason

without reason

to make up a reason

In formal contexts, '理由' is often used with 'を' (e.g., '理由を説明する'). In informal speech, it can be used more flexibly.

'理由' is more about justification, while '原因' focuses on the source of an event.

Composed of '理' (reason, logic) and '由' (cause, origin).

Often used in formal and informal contexts to explain actions or decisions.

理

reason, logic

root

由

cause, origin

root

和英辞典