論拠
The logical basis or grounds for an argument or belief. Evidence or reasoning used to support a claim.
Examples
3 of 5論拠を示して反論する。
To argue back by showing grounds.
その説の論拠は何ですか？
What are the grounds for that theory?
提案の論拠を補強するためにデータを追加する。
Add data to strengthen the grounds of the proposal.
Word Family
Memory Tip
Ron (logic/debate) + Kyo (base/grounds).
Quick Quiz
強い主張をするためには、確かな___が必要だ。
Correct!
The correct answer is: 論拠
Examples
論拠を示して反論する。
academicTo argue back by showing grounds.
その説の論拠は何ですか？
everydayWhat are the grounds for that theory?
提案の論拠を補強するためにデータを追加する。
businessAdd data to strengthen the grounds of the proposal.
もっと論拠がないと信じられないよ。
informalI can't believe it without more grounds.
客観的な事実を論拠として用いる。
formalUsing objective facts as the basis for the argument.
Word Family
Common Collocations
Common Phrases
論拠が薄い
weak argument/grounds
論拠を問う
to question the grounds
科学的論拠
scientific grounds
Often Confused With
Konkyo is more general (grounds for any belief); Ronkyo is specifically for formal debates or academic arguments.
Usage Notes
A high-level word that impresses in the IELTS Writing Task 2.
Common Mistakes
Don't use 'ronkyo' for emotional reasons; it must be logical or evidence-based.
Memory Tip
Ron (logic/debate) + Kyo (base/grounds).
Word Origin
Ron (argument) and Kyo (base/foundation).
Grammar Patterns
Quick Quiz
強い主張をするためには、確かな___が必要だ。
Correct!
The correct answer is: 論拠
Related Vocabulary
More academic words
充足
B2The state of being sufficient or satisfying a requirement. It is often used in formal contexts regarding criteria, human resources, or needs.
集中
B1The action of focusing one's attention or mental effort on a particular object or activity; also refers to a high density of something in one area.
明確
B1Clear and definite; leaving no doubt. Essential for academic writing to describe goals, results, or definitions.
文献
B1Books, reports, or articles that provide information or evidence on a specific subject. Essential for citing sources in academic work.
現状
B1The existing state of affairs, especially as contrasted with a different potential status. Used to introduce problems in IELTS essays.
緻密
B2Extremely careful and giving great attention to detail; precise. It is often used to describe research, planning, or artwork.
背景
B2The circumstances or situation that prevail at a particular time or underlie an event; the context.
洞察
B2The ability to see into a situation or problem deeply and understand its inner nature or hidden truths. It is a high-level form of understanding or 'insight'.
阻害
B2The act of hindering, obstructing, or preventing progress, development, or a biological process.
頻出
B2Something that appears or occurs frequently, especially in tests, literature, or data sets.
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