理論

りろん

theory

What does 理論 mean?

理論 is a Japanese noun meaning theory in English. It is written as 理論 in kanji, りろん in hiragana, and riron in romaji. This word is part of JLPT N1 vocabulary.

Example sentence

その考えが彼の理論の基礎となっている。

The idea underlies his theory.