B1 Collocation Formal 5 min read

討論をする

ja phrase 01399

debate

Literally: to do a debate

In 15 Seconds

  • A structured, logical exchange of differing opinions to reach a conclusion.
  • Commonly used in academic, business, and formal social media contexts.
  • Implies purposeful disagreement rather than just a casual or emotional argument.
  • Combines 'debate' (tōron) with the action verb 'to do' (suru).

Meaning

This phrase describes a structured, intellectual clash of ideas. It’s not just chatting; it’s rolling up your sleeves to tackle a specific problem through logic and evidence. Think of it as a 'battle of brains' where the goal is to reach a conclusion or find a solution.

Key Examples

3 of 10
1

In a university seminar

学生たちは環境問題について討論をしました。

The students held a debate about environmental issues.

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2

During a business strategy meeting

新しいプロジェクトの方向性について、一時間討論をしましょう。

Let's debate the direction of the new project for an hour.

<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 13.255A23.931 23.931 0 0112 15c-3.183 0-6.22-.62-9-1.745M16 6V4a2 2 0 00-2-2h-4a2 2 0 00-2 2v2m4 6h.01M5 20h14a2 2 0 002-2V8a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"/></svg>
3

Texting a group chat about a movie

✗ 昨日の映画の結末について、友達と討論をしました。 → ✓ 昨日の映画の結末について、友達と話しました。

✗ I debated the movie ending with my friend. → ✓ I talked about the movie ending with my friend.

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🌍

Cultural Background

Debate is often done to confirm consensus rather than to change minds.

🎯

Use with 'ni tsuite'

Always use {について|について} to define the topic of the debate.

In 15 Seconds

  • A structured, logical exchange of differing opinions to reach a conclusion.
  • Commonly used in academic, business, and formal social media contexts.
  • Implies purposeful disagreement rather than just a casual or emotional argument.
  • Combines 'debate' (tōron) with the action verb 'to do' (suru).

What It Means

Ever watched a courtroom drama where lawyers battle with cold, hard logic? That is the exact energy of 討論をする. It is far more than just "talking" or "chatting" with your buddies. This phrase implies a structured exchange of differing opinions. You are not just sharing feelings; you are presenting arguments. It feels intellectual, purposeful, and sometimes a little intense. Think of it as a brain-clash for the sake of progress. You use it when you want to reach a solid conclusion or solve a tricky problem. It is the adult, professional version of "figuring things out."

How To Use It

You will usually see this phrase in academic or professional settings. You need a topic, some evidence, and a goal. It is like playing a game of chess with words. You make a move, then they counter-move. In Japanese, the particle connects the noun 討論 to the verb する. This makes it feel like a specific activity you are participating in. You can also drop the to say 討論する, which sounds slightly more clinical. Use the full version when you want to sound more natural in conversation. It is perfect for Zoom breakout rooms or serious Discord threads.

Real-Life Examples

Imagine you are watching a YouTube "Change My Mind" style stream. The host might say, 今日はこのテーマについて討論をします. That translates to "Today, we will debate this theme." Or think about a group project on Slack. You might type, 新機能について討論をしましょう. This means "Let's debate the new features." It shows you are ready to look at the pros and cons deeply. It is not just about being right; it is about finding the best path forward together. Even on TikTok, you might see people "duetting" to 討論をする about a viral trend.

When To Use It

Use it in a classroom when your teacher asks for opinions on history. Use it in a business meeting when choosing a marketing strategy. It is great for social media when you want to signal you are being "civil." It implies you are using your prefrontal cortex, not just your emotions. If you are arguing about which anime is objectively the best, this works. It makes your passionate rant sound like a legitimate academic pursuit. It adds a layer of respect to the conversation. Even if you disagree, you are doing it properly.

When NOT To Use It

Do not use this for a casual "what should we eat for dinner?" talk. That would make you sound like a robot or a very intense politician. Avoid it during a romantic date unless you are both philosophy nerds. It is way too heavy for a quick catch-up at a café over lattes. Also, do not use it for a physical fight or a screaming match. That is 喧嘩 (kenka), and it has zero logic involved. 討論をする requires a certain level of decorum and structure. If there are no points being made, it is not a debate.

Common Mistakes

Learners often confuse this with 喧嘩をする. ✗ 昨日、彼氏と討論をした sounds like you had a formal moderator in your living room. ✓ 昨日、彼氏と喧嘩をした means you actually had a relationship fight. Another mistake is using it for simple talking. ✗ 友達と映画について討論をした is too stiff for a movie night. ✓ 友達と映画について話した is much more natural and friendly. Do not use it when you just mean "to argue" in a negative way. It should feel constructive, not destructive. Remember, a debate has a goal; a fight just has casualties.

Similar Expressions

議論をする (giron o suru) is a very close cousin to this phrase. It is more about "discussion" and is slightly less about having "opposing sides." 話し合い (hanashiai) is the friendly, cooperative version of the family. It is for when you want everyone to get along and agree quickly. 論争 (ronsō) is the "final boss" version of a debate. It is used for long-standing, intense public controversies, like political scandals. If 討論 is a match, 論争 is a full-scale war of words. Choose your weapon based on the heat of the room.

Common Variations

You might hear 討論会 (tōron-kai), which refers to a formal debate meeting or assembly. On Japanese TV, you will see 討論番組 (tōron bangumi) for those shows where experts yell politely. A パネル討論 (paneru tōron) is a panel discussion you might find at a tech conference. You can also spice it up with adverbs. 熱く討論をする (atsuku...) means to debate heatedly or passionately. 冷静に討論をする (reisei ni...) means to debate calmly. Adding these helps describe the "vibe" of the room perfectly. It turns a boring verb into a vivid scene.

Memory Trick

💡

Think of the first kanji (tō) as "to attack" (attacking an idea). Think of the second kanji (ron) as "logic" or "theory." You are literally "attacking with logic" to find the truth. Or, use a mnemonic: Imagine you are in a debate and you have to keep on your "Toe" (Tō) or people will "Run" (ron) over your arguments. If you don't 討論, you'll be left behind! It is a workout for your brain, so keep those logical toes moving.

Quick FAQ

Is it always formal? Mostly, yes, but you can use it ironically with friends to sound funny. Does it mean I have to win? Not necessarily; it is more about the process of exchanging views. Can I use it in a text message? Yes, if you are discussing something serious like a project or a news story. Is it different from a "meeting"? Yes, a meeting (会議) is the place; 討論 is the action of debating within that meeting. It implies a higher level of intellectual engagement than just sitting there.

Usage Notes

This phrase is firmly in the 'formal' to 'neutral' territory. Avoid using it for petty personal squabbles or casual chats, as it makes you sound cold or overly intense. It requires a specific topic and a logical approach to be used correctly.

🎯

Use with 'ni tsuite'

Always use {について|について} to define the topic of the debate.

Examples

10
#1 In a university seminar
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 13.255A23.931 23.931 0 0112 15c-3.183 0-6.22-.62-9-1.745M16 6V4a2 2 0 00-2-2h-4a2 2 0 00-2 2v2m4 6h.01M5 20h14a2 2 0 002-2V8a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"/></svg>

学生たちは環境問題について討論をしました。

The students held a debate about environmental issues.

Standard use for an academic setting where multiple viewpoints are presented.

#2 During a business strategy meeting
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 13.255A23.931 23.931 0 0112 15c-3.183 0-6.22-.62-9-1.745M16 6V4a2 2 0 00-2-2h-4a2 2 0 00-2 2v2m4 6h.01M5 20h14a2 2 0 002-2V8a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"/></svg>

新しいプロジェクトの方向性について、一時間討論をしましょう。

Let's debate the direction of the new project for an hour.

Suggests a focused, time-bound session to resolve professional differences.

Texting a group chat about a movie Common Mistake
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>

✗ 昨日の映画の結末について、友達と討論をしました。 → ✓ 昨日の映画の結末について、友達と話しました。

✗ I debated the movie ending with my friend. → ✓ I talked about the movie ending with my friend.

`討論` is too formal and heavy for a casual chat about a movie with friends.

#4 YouTube video title
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>

【生放送】AIの未来について専門家が討論をする!

[Live] Experts debate the future of AI!

Commonly used in media titles to attract viewers looking for intellectual content.

#5 Describing a heated social media thread

X(旧Twitter)では、毎日いろいろなテーマで討論がされています。

On X (formerly Twitter), debates are held every day on various themes.

Shows the passive form `討論がされています` to describe ongoing societal actions.

#6 At a political town hall
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 13.255A23.931 23.931 0 0112 15c-3.183 0-6.22-.62-9-1.745M16 6V4a2 2 0 00-2-2h-4a2 2 0 00-2 2v2m4 6h.01M5 20h14a2 2 0 002-2V8a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"/></svg>

候補者たちは教育改革について熱く討論をしました。

The candidates debated heatedly about education reform.

`熱く` (heatedly) adds emotional weight to the formal action.

Explaining a relationship issue Common Mistake
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✗ 浮気の疑いについて、妻と討論をしました。 → ✓ 浮気の疑いについて、妻と話し合いをしました。

✗ I debated my wife about the suspected cheating. → ✓ I had a talk/discussion with my wife about the suspected cheating.

Personal/emotional issues require `話し合い` (discussion) rather than a formal `討論` (debate).

#8 A humorous take on a trivial argument
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>

きのこの山とたけのこの里、どちらが美味しいか一晩中討論をした。

We debated all night about whether Kinoko no Yama or Takenoko no Sato is tastier.

Using a formal word for a trivial snack war creates a humorous contrast.

#9 Instagram caption for a debate club photo
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>

今日の討論会、みんなで全力で討論をしました!お疲れ様!

At today's debate meet, everyone debated with all their might! Great job!

A typical social media post for students or club members.

#10 Serious discussion between siblings
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 13.255A23.931 23.931 0 0112 15c-3.183 0-6.22-.62-9-1.745M16 6V4a2 2 0 00-2-2h-4a2 2 0 00-2 2v2m4 6h.01M5 20h14a2 2 0 002-2V8a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"/></svg>

親の介護について、兄弟で冷静に討論をする必要があります。

We need to calmly debate/discuss our parents' nursing care among us siblings.

`冷静に` (calmly) suggests a need for logic in a potentially emotional family matter.

Test Yourself

Fill in the blank with the correct verb.

会議で新しい計画について___。

✓ Correct! ✗ Not quite. Correct answer: {討論|とうろん}した

In a meeting, you debate plans, you don't chat or play.

🎉 Score: /1

Visual Learning Aids

Practice Bank

1 exercises
Fill in the blank with the correct verb. Fill Blank B1

会議で新しい計画について___。

✓ Correct! ✗ Not quite. Correct answer: {討論|とうろん}した

In a meeting, you debate plans, you don't chat or play.

🎉 Score: /1

Frequently Asked Questions

1 questions

No, it sounds too serious.

Related Phrases

🔄

{議論|ぎろん}する

synonym

To discuss/argue

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