〜論(ろん)

ろん
suffix
theory; -ology
1. theory; -ology; discourse on
Suffix indicating a theory, field of study, or systematic discussion about a topic.
進化(しんか)論(ろん)について学(まな)んだ。
I studied the theory of evolution.
彼(かれ)は独自(どくじ)の経済(けいざい)論(ろん)を持(も)っている。
He has his own economic theory.
卒業(そつぎょう)論文(ろんぶん)は言語(げんご)論(ろん)がテーマだ。
My thesis topic is linguistics.

USAGE: Attached to nouns to form names of theories, academic fields, or types of discourse.

COMMON COMPOUNDS:

  • 進化(しんか)論(ろん) (theory of evolution)
  • 相対性(そうたいせい)理論(りろん) (theory of relativity)
  • 経済(けいざい)論(ろん) (economic theory)
  • 言語(げんご)論(ろん) (linguistics)
  • 方法(ほうほう)論(ろん) (methodology)
  • 世論(よろん)/世論(せろん) (public opinion)
  • 反対(はんたい)論(ろん) (opposing argument)
  • 賛成(さんせい)論(ろん) (supporting argument)

NOTE: 論(ろん) by itself can mean 'argument' or 'theory'. The suffix creates compound nouns.

Related Words

Related: 論文(ろんぶん) (thesis, paper)
general
Added 2026.1.13 16:50 · Revised 2026.1.19 20:37
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