理論 (Riron) is a Japanese noun meaning “theory”.
Meanings
- nountheory
Examples
彼の理論は事実に基づく。
His theory is based on fact.
彼の理論は一考に値する。
His theory deserves consideration.
彼の理論は実行に移された。
His theories were put into effect.
Sentences from Tatoeba (CC BY 2.0 FR).