Nuance & Usage
理由 is a standard word for reason or cause, often used when explaining decisions, delays, or opinions. It frequently appears with 理由を説明する.
Common Mistakes
Learners may confuse 理由 and 原因. 理由 is often subjective or explanatory, while 原因 is a more objective cause, especially in analysis.
Example Sentences (3)
1
遅れた理由を説明してください。
おくれたりゆうをせつめいしてください。
Please explain the reason for being late.
formal
2
この方法を選んだ理由は何ですか。
このほうほうをえらんだりゆうはなんですか。
What is the reason you chose this method?
Business
3
勉強を続ける理由がはっきりしています。
べんきょうをつづけるりゆうがはっきりしています。
The reason I continue studying is clear.
Quick Quiz
Quick Quiz
N44 questionsTest your knowledge of 理由 with 4 different question types.
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