B2 noun #4,500 가장 일반적인 3분 분량

bleach

Bleach is a strong chemical liquid used to make things white or to clean germs.

Explanation at your level:

Bleach is a special liquid. It is white and strong. You use it to clean your house. It kills germs. It makes white clothes very clean. Be careful with it! Do not drink it. Do not touch it with your hands. It is for cleaning floors and clothes only. Keep it away from children. It is a very useful thing for your home.

Bleach is a common cleaning product. Most people keep a bottle of bleach in their laundry room or under the kitchen sink. It is very good at removing stains from white shirts. You can also use it to clean the toilet or the sink because it kills bacteria. However, bleach is a very strong chemical. You should always wear gloves when you use it. Never mix bleach with other cleaners because it can be dangerous.

Bleach is a chemical agent that is widely used for whitening and disinfecting. In a domestic context, it is a staple for laundry and sanitation. When you have a stubborn stain on a white garment, bleach is often the go-to solution. It is also highly effective at killing mold and mildew in bathrooms. Because of its potency, it is important to dilute it with water before use. Many people also use it to sanitize surfaces during flu season to prevent the spread of germs.

The term bleach refers to a group of chemical compounds that act through oxidation to remove color or pathogens. Beyond its common household use, bleach plays a critical role in industrial processes, such as paper manufacturing and textile production. While it is an essential tool for hygiene, it is also a hazardous substance. Native speakers often use the word in phrases like 'bleach-white' to describe extreme cleanliness or brightness. Understanding its chemical nature is helpful, as it explains why it should never be combined with acidic cleaners, which can release toxic chlorine gas.

Bleach is a versatile chemical agent that occupies a significant place in both domestic and industrial spheres. Its primary function—oxidation—renders it indispensable for sanitation and material processing. In a figurative sense, the word can imply a 'washing away' of identity or color, often used in literary contexts to describe a landscape or object that has been stripped of its vibrancy by the elements. While its utility is undisputed, the word carries connotations of harshness and sterility. In professional settings, one might discuss 'bleaching agents' in the context of chemical engineering or environmental science, noting the balance between its efficacy as a disinfectant and its potential impact on local ecosystems when disposed of improperly.

Etymologically, bleach traces its lineage to the Old English 'blǣcan,' signifying the act of whitening. This linguistic history highlights the human desire to purify and brighten, a theme that has persisted from the primitive use of sunlight to the modern, highly concentrated sodium hypochlorite solutions we utilize today. The cultural weight of the word is profound; it represents the intersection of domestic labor, industrial progress, and chemical safety. In advanced discourse, one might explore the 'bleaching' of coral reefs as an environmental phenomenon, where the term takes on a more somber, ecological meaning. The word is not merely a noun for a cleaning fluid; it is a symbol of transformation, a process of stripping away the old to reveal a blank, sterile slate. Its usage requires a nuanced understanding of its chemical potency and the linguistic registers that range from the mundane 'bleach the whites' to the scientific analysis of oxidative degradation.

30초 단어

  • Bleach is a powerful chemical cleaner.
  • It works by oxidation to remove color and kill germs.
  • It is a mass noun and should be used with caution.
  • Commonly used in laundry and home sanitation.

When we talk about bleach, we are usually referring to a powerful liquid cleaner that lives under the kitchen sink. It is famous for two main things: making white clothes brighter and killing germs on bathroom tiles.

At its heart, bleach is a chemical tool. It works through oxidation, which is a fancy way of saying it steals electrons from molecules to break them apart. This is why it can turn a dark stain invisible or wipe out bacteria.

Because it is so strong, you have to be careful. It can irritate your skin and shouldn't be mixed with other cleaners, like ammonia, because that can create dangerous gas. Think of it as a heavy-duty helper that requires some respect!

The word bleach comes from the Old English word blǣcan, which simply meant 'to make pale' or 'to whiten.' It shares a root with the word 'bleak,' which originally described something that looked pale or washed out.

Historically, people used sunlight and sour milk to bleach fabrics! It wasn't until the 18th century that scientists discovered the chemical properties of chlorine. This changed the textile industry forever, allowing mass production of white linens.

By the 20th century, liquid bleach became a staple in homes. It transformed from an industrial secret into a household necessity. It is fascinating how a word that once meant 'to shine in the sun' now describes a bottle of chemicals we buy at the grocery store.

In daily life, we use bleach as both a noun and a verb. As a noun, you might say, 'Add some bleach to the laundry.' As a verb, you might say, 'I want to bleach my jeans.'

Common collocations include 'chlorine bleach,' 'splash of bleach,' and 'bleach stains.' You will often hear it in the context of chores, like 'scrubbing with bleach' or 'diluting the bleach.'

The register is generally neutral to informal. In a scientific or industrial setting, it might be referred to as a 'bleaching agent.' Just remember, because it is a chemical, it is rarely used in poetic or flowery language unless you are describing something harsh or sterile.

While bleach isn't the most poetic word, it appears in a few interesting ways. 1. Bleached out: Used to describe something that has lost all its color from the sun. 2. Bleach the truth: A rare way to say 'whitewash' or cover up a scandal. 3. Bleach blonde: Describes hair that has been chemically lightened. 4. Like bleach on a stain: Used to describe something that removes a problem instantly. 5. Bleached bones: A common literary trope for something left to dry in the desert sun.

The word bleach is an uncountable noun when referring to the substance. You don't say 'two bleaches'; you say 'two bottles of bleach.' The IPA pronunciation is /bliːtʃ/ in both British and American English.

It rhymes with 'teach,' 'reach,' 'leech,' 'beach,' and 'speech.' The stress is naturally on the single syllable. When using it as a verb, it follows regular patterns: bleached, bleaching.

Remember that because it is a mass noun, it takes a singular verb. For example: 'The bleach is strong.' Never use 'are' with it unless you are talking about multiple distinct types or containers of the chemical.

Fun Fact

Before chemicals, people used sunlight to bleach fabric.

Pronunciation Guide

UK /bliːtʃ/

Long 'ee' sound followed by 'ch'.

US /bliːtʃ/

Crisp and clear, identical to UK.

Common Errors

  • Pronouncing it like 'bleak'
  • Adding an extra syllable
  • Softening the 'ch' sound

Rhymes With

reach teach leech beach speech

Difficulty Rating

독해 2/5

Easy to read

Writing 2/5

Easy to use

Speaking 2/5

Easy to pronounce

듣기 2/5

Easy to hear

What to Learn Next

Prerequisites

clean white chemical liquid

Learn Next

oxidation disinfectant hazardous concentrated

고급

hypochlorite reagent decolorization

Grammar to Know

Mass Nouns

Bleach is uncountable.

Imperative Mood

Use gloves!

Passive Voice

The floor was bleached.

Examples by Level

1

The bleach is in the bottle.

bleach = strong cleaner

singular noun

2

I use bleach to clean.

use = utilize

verb usage

3

Do not touch the bleach.

touch = feel with skin

imperative

4

Bleach makes clothes white.

makes = causes to be

simple present

5

Is this bleach?

question form

question

6

The bleach smells strong.

smells = has an odor

linking verb

7

I need more bleach.

need = require

transitive verb

8

Keep bleach away.

away = not close

phrasal verb

1

I spilled some bleach on my jeans.

2

Always wear gloves when using bleach.

3

The floor was cleaned with bleach.

4

She added a capful of bleach to the water.

5

Bleach can ruin colored fabrics.

6

Be careful, that bottle contains bleach.

7

The smell of bleach is very sharp.

8

We need to buy more bleach for the laundry.

1

The bathroom was disinfected with a bleach solution.

2

She accidentally bleached her favorite sweater.

3

Bleach is effective at killing mold in the shower.

4

Make sure to dilute the bleach before scrubbing.

5

The sun had bleached the color from the curtains.

6

He used bleach to remove the stubborn stain.

7

Keep bleach out of reach of children.

8

The pool water has a high concentration of bleach.

1

The industrial process requires a specialized bleaching agent.

2

The landscape looked bleached by the harsh desert sun.

3

Never mix bleach with ammonia, as it creates toxic fumes.

4

Her hair was a stark, bleach-blonde color.

5

The report was a whitewash, a total bleach of the truth.

6

The coral reefs are suffering from mass bleaching.

7

The janitor kept a gallon of bleach in the storage room.

8

The fabric was bleached to a pure, snowy white.

1

The environmental impact of industrial bleach runoff is significant.

2

The artist used a bleach technique to create patterns on denim.

3

The intense light left the photograph looking completely bleached out.

4

He spoke with a cold, bleached tone that lacked any emotion.

5

The history of the region had been bleached of its cultural identity.

6

Sodium hypochlorite is the active ingredient in household bleach.

7

The sterile room smelled faintly of bleach and antiseptic.

8

The bleaching of the cloth was the final step in production.

1

The bleaching of the coral reefs serves as a grim indicator of climate change.

2

The narrative was bleached of all its original, vibrant complexity.

3

One must exercise extreme caution when handling concentrated bleach.

4

The sun-bleached bones lay scattered across the arid plains.

5

He sought to bleach his conscience of the past through charitable work.

6

The chemical reaction involves the oxidation of pigments by the bleach.

7

The aesthetic was minimalist, almost bleached in its simplicity.

8

The historical record has been bleached by those in power to suit their agenda.

동의어

whitener disinfectant decolorant cleanser peroxide sterilizer

반의어

자주 쓰는 조합

chlorine bleach
splash of bleach
bleach stains
diluted bleach
bleach solution
smell of bleach
bleach white
industrial bleach
bleach bottle
bleach fumes

Idioms & Expressions

"bleached out"

faded by the sun

The old sign was completely bleached out.

neutral

"bleach blonde"

chemically lightened hair

She is famous for her bleach blonde hair.

casual

"bleach the truth"

to hide the reality

They tried to bleach the truth of the scandal.

literary

"bleached bones"

remains left in the sun

The desert was filled with bleached bones.

literary

"bleach clean"

extremely clean

The kitchen was scrubbed bleach clean.

casual

"bleach job"

the act of bleaching

That was a bad bleach job on your hair.

casual

Easily Confused

bleach vs Bleak

Similar spelling

Bleak means gloomy; bleach is for cleaning.

The weather was bleak.

bleach vs Beach

Similar sound

Beach is sand/ocean; bleach is a chemical.

We went to the beach.

bleach vs Bleecher

Sounds like bleacher

Bleacher is a stadium seat.

Sit on the bleacher.

bleach vs Bleach vs Dye

Both affect color

Bleach removes; dye adds.

I dyed my shirt blue.

Sentence Patterns

A1

Add [bleach] to [liquid]

Add bleach to the water.

A2

Clean [object] with [bleach]

Clean the sink with bleach.

B1

The [object] was bleached by [agent]

The shirt was bleached by the sun.

B2

Use [bleach] to [verb]

Use bleach to kill germs.

C1

Be careful with [bleach]

Be careful with bleach fumes.

어휘 가족

Nouns

bleacher a person who bleaches or a stadium seat

Verbs

bleach to make white

Adjectives

bleached made white or pale

관련

chlorine common chemical in bleach

How to Use It

frequency

8/10

Formality Scale

Scientific: Bleaching Agent Neutral: Bleach Casual: Bleach

자주 하는 실수

Using 'bleaches' as a plural noun bottles of bleach
Bleach is an uncountable mass noun.
Mixing bleach with ammonia Never mix them
It creates toxic gas.
Drinking bleach Do not ingest
It is highly toxic and corrosive.
Using bleach on dark clothes Use color-safe bleach
Regular bleach removes all color.
Thinking bleach is a soap Bleach is a disinfectant/whitener
It doesn't remove dirt like soap.

Tips

💡

Memory Palace

Picture a bright white bottle in your laundry room.

💡

Safety First

Always wear gloves.

🌍

Cleanliness

In the US, 'bleach white' is a standard of clean.

💡

Mass Noun

Never say 'a bleach'.

💡

The 'ch' sound

Keep it sharp.

💡

Don't Mix

Never mix with ammonia.

💡

Sunlight

Sun is nature's bleach.

💡

Context

Read laundry labels.

💡

Dilution

Always dilute for surfaces.

🌍

Industrial

Used in paper mills.

Memorize It

Mnemonic

B-L-E-A-C-H: Brightens Laundry, Everything Always Clean, Help!

Visual Association

A bright white shirt turning even whiter in a tub of water.

Word Web

cleaning laundry chemicals oxidation white

챌린지

Identify three things in your house that you should NOT use bleach on.

어원

Old English

Original meaning: to make pale

문화적 맥락

Highly toxic; handle with extreme caution.

Common in household cleaning and laundry culture.

Bleach (manga/anime) Nirvana's album 'Bleach'

Practice in Real Life

Real-World Contexts

Laundry

  • bleach the whites
  • color-safe bleach
  • laundry bleach

Cleaning

  • bleach solution
  • scrub with bleach
  • disinfect with bleach

Hair Care

  • bleach blonde
  • bleaching process
  • bleach damage

Industrial

  • bleaching agent
  • paper bleaching
  • chemical bleach

Conversation Starters

"Do you use bleach when you do your laundry?"

"Have you ever accidentally bleached your clothes?"

"Why do you think bleach is so effective at cleaning?"

"What is the most important safety rule for using bleach?"

"Do you prefer natural cleaners or chemical cleaners like bleach?"

Journal Prompts

Describe a time you had to clean a very dirty surface.

Write about the importance of safety when handling household chemicals.

Imagine a world without cleaning products. How would life change?

Explain the difference between bleaching and dyeing.

자주 묻는 질문

8 질문

No, it is highly toxic.

No, it is a disinfectant.

It releases chlorine gas.

Only if you want them to turn white.

In a cool, dark place away from kids.

Usually sodium hypochlorite.

Yes, it loses potency over time.

Only if specifically designed for it.

셀프 테스트

fill blank A1

I use ___ to make my clothes white.

정답! 아쉬워요. 정답: bleach

Bleach is the agent for whitening.

multiple choice A2

What happens if you put bleach on a dark shirt?

정답! 아쉬워요. 정답: It loses color

Bleach removes color.

true false B1

Bleach is safe to mix with any other cleaner.

정답! 아쉬워요. 정답: 거짓

Mixing bleach with ammonia or acid is dangerous.

match pairs B1

Word

All matched!

Matches the substance to its property.

sentence order B2

아래 단어를 탭해서 문장을 만들어 보세요
정답! 아쉬워요. 정답:

Clean the floor with the bleach.

fill blank B2

The sun ___ the colors of the old flag.

정답! 아쉬워요. 정답: bleached

Sunlight acts as a natural bleaching agent.

multiple choice C1

Which term describes the chemical process of bleach?

정답! 아쉬워요. 정답: Oxidation

Bleach works by oxidation.

true false C1

Bleach is a countable noun.

정답! 아쉬워요. 정답: 거짓

It is a mass noun.

match pairs C2

Word

All matched!

Matches idioms to meanings.

sentence order C2

아래 단어를 탭해서 문장을 만들어 보세요
정답! 아쉬워요. 정답:

The history was bleached of identity.

점수: /10

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