論拠

• 読み: ろんきょ
• ローマ字: ronkyo
• 漢字の分解: 論 (ron) — argument, theory; 拠 (kyo) — basis, grounds
• 発音: /ɾoɴ.kjo/

意味

Grounds of an argument; basis for reasoning. The evidence or rationale that supports a claim.

A noun used in logical discourse, debate, and academic writing to refer to the foundation upon which an argument rests. Common patterns include 論拠を示す (to present grounds), 論拠が弱い (the basis is weak), and 論拠に欠ける (to lack grounds). More formal than 理由 (reason), emphasising logical structure rather than simple cause.

例文

1. その主張には十分な論拠が示されていない。
2. 科学的な論拠に基づいて政策を決めるべきだ。
3. 論拠が弱いと相手を説得するのは難しい。

使い方ガイド

場面: academic writing, debate, law, journalism

トーン: intellectual

起源と歴史

From Sino-Japanese 論 (ron, argument/theory) + 拠 (kyo, basis/grounds). Literally 'argument basis,' a term rooted in classical Chinese rhetorical tradition that became standard in modern Japanese academic and legal discourse.

文化的背景

時代: Classical

世代: All ages

社会的背景: Universal