A1 noun Neutral #2,681 most common

反応

hannō [hã̠nːo̞ː]

A response or reaction to a stimulus, action, or statement. It can refer to a person's behavior in response to something, or a physical/chemical process where substances change.

Examples

3 of 5
1

彼の反応はとても面白かったです。

His reaction was very funny.

2

新製品に対する市場の反応を調査します。

We will investigate the market's reaction to the new product.

3

メッセージを送ったけど、全然反応がないよ。

I sent a message, but there's no reaction at all.

Word Family

Noun
反応
Verb
反応する
Related
反応性
💡

Memory Tip

Visualize a science lab: you add a drop of liquid (the stimulus) and wait for the 'return' (反 - han) 'response' (応 - nō).

Quick Quiz

プレゼントをあげたが、彼女の( )はあまり良くなかった。

Correct!

The correct answer is: 反応

Examples

1

彼の反応はとても面白かったです。

everyday

His reaction was very funny.

2

新製品に対する市場の反応を調査します。

formal

We will investigate the market's reaction to the new product.

3

メッセージを送ったけど、全然反応がないよ。

informal

I sent a message, but there's no reaction at all.

4

この実験では、特定の温度で化学反応が起こります。

academic

In this experiment, a chemical reaction occurs at a specific temperature.

5

お客様の反応を見て、サービスを改善しましょう。

business

Let's look at the customers' reactions and improve our service.

Word Family

Noun
反応
Verb
反応する
Related
反応性

Common Collocations

反応が良い to have a good reaction
化学反応 chemical reaction
反応を示す to show a reaction
反応が遅い to be slow to react
過剰反応 overreaction

Common Phrases

反応を見る

to see how someone reacts

反応に困る

to not know how to react

チェーン反応

chain reaction

Often Confused With

反応 vs 返事

📝

Usage Notes

Use 'hannō' when describing how someone or something acts as a result of an external trigger. It is very common in both social contexts and scientific discussions.

⚠️

Common Mistakes

Learners sometimes use 'hannō' when they simply mean 'an answer' (henji). 'Hannō' describes the behavior or the 'vibe' of the response rather than the content of the words.

💡

Memory Tip

Visualize a science lab: you add a drop of liquid (the stimulus) and wait for the 'return' (反 - han) 'response' (応 - nō).

📖

Word Origin

A Sinitic compound where '反' (han) means 'return/anti' and '応' (nō) means 'respond/correspond'.

Grammar Patterns

Noun + に反応する (React to...) 〜の反応 (The reaction of...)
🌍

Cultural Context

In Japanese communication, observing 'hannō' is crucial for 'reading the air' (kuuki wo yomu) to maintain social harmony.

Quick Quiz

プレゼントをあげたが、彼女の( )はあまり良くなかった。

Correct!

The correct answer is: 反応

Related Words

訂正

A1

The act of correcting or revising errors in written or spoken information. It specifically refers to fixing factual mistakes, typos, or inaccuracies to make the content right.

開業

A1

The act of starting a new business, opening a shop, or establishing a professional practice such as a medical clinic or law office. It refers specifically to the initial launch or the commencement of operations for an enterprise.

研修

A1

A period of training or study intended to improve a person's skills or knowledge, typically within a professional or organizational context. It often refers to structured programs like workshops, seminars, or internships provided by companies or institutions.

獲得

A1

獲得 refers to the act of obtaining or acquiring something desirable, such as a prize, a right, a skill, or a market share. It typically implies a level of effort, competition, or formal process required to secure the item or status.

瞑想

A1

Meditation; the practice of focusing one's mind for a period of time, often for religious or relaxation purposes. In Japanese, it refers both to traditional Zen practices and modern mindfulness techniques.

熟考

A1

Deep consideration or careful thought about a matter over a period of time. It involves weighing different options or consequences seriously before reaching a conclusion or decision.

勤務

A1

Kinmu refers to the act of performing one's duties at a workplace or the specific service one provides to an employer. It is a formal term often used to describe working hours, locations, or the professional nature of a job assignment.

unknown

A1

A student attending a university or college for higher education. In Japan, it specifically refers to undergraduate students in a four-year university or a two-year junior college.

維持

A1

The act of keeping something in its current state, condition, or level over a period of time. It is commonly used to describe the maintenance of health, systems, relationships, or the status quo.

縮小

A1

The act of reducing the size, scale, or scope of something. It is commonly used when talking about downsizing operations, shrinking digital images, or narrowing the range of a project.

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