Japanese

げんいん
Meaning: cause; origin; source
Part of Speech: Noun

Listen to pronunciation

Handwriting

原
因

Example sentences

We are investigating the cause of the failure.
そもそも、彼が遅刻したのが原因だ。
In the first place, the fact that he was late is the cause.
事件の原因はいまだに謎に包まれている。
The cause of the incident is still a mystery.
些細なことが原因で、大きな誤解を招いてしまった。
A trivial thing led to a major misunderstanding.
警察は事件の原因を詳しく調査している。
The police are investigating the cause of the incident in detail.
事故の原因は今のところ不明です。
The cause of the accident is currently unknown.
些細なことが原因で、彼と口論になった。
I had a quarrel with him over a trivial matter.
科学者はついに病気の原因を突き止めた。
Scientists finally determined the cause of the disease.
事故の原因を推察するのは容易だ。
It is easy to infer the cause of the accident.
不規則な生活は、健康を損なう原因となる。
An irregular lifestyle is a cause of damage to health.

Usage Notes

Refers to the thing or event that brings about a certain state or change. Often contrasted with 'kekka' (result).

Sottaku

About Sottaku

Sottaku is an app for learning Chinese, Japanese, Korean, English, Spanish, French, German, and Italian with a strong focus on SRS. It includes automatic flashcard creation for hundreds of thousands of words, grammar breakdowns in example sentences, language-specific study packs where available, adaptive quizzes, mobile apps, a browser extension, and community features. Give it a try now! All learning content is free with no limits on flashcards or study time.

Sottaku is built to match the habits of successful learners. By using Sottaku, you will naturally learn in the most efficient way possible, as proven by countless success stories in the language learning community.

Free Forever

Access all grammar guides, quizzes, and flashcards without paying a cent. Quality education should be accessible to everyone.

Smart SRS System

Our flashcard system uses the FSRS algorithm (also used in Anki) to optimize your review schedule and maximize retention.

Comprehensive Content

From hanzi, kana, hangul, and European vocabulary basics to grammar and reading practice where available, we have lessons for every level. Practice with quizzes tailored to your skill.

Community Chat

Ask level-appropriate questions and get help from the community. Learn together with fellow learners across all 8 supported languages.