Explanation at your level:
Cement is a grey powder. Builders use it to make houses. When you mix it with water, it gets very hard. It is like strong glue for bricks.
You use cement to build walls and roads. It is a grey powder. You mix it with water and sand. Then it becomes hard like a rock. It is very important for building things.
Cement is a binding material used in construction. It is a grey powder that, when mixed with water, becomes a paste. This paste hardens over time. It is the main ingredient in concrete, which is used for buildings and sidewalks.
In construction, cement is the essential powder that acts as a binder. It is rarely used alone; it is mixed with aggregates to form concrete. Beyond the literal meaning, we often use it figuratively to describe strengthening a bond or agreement.
The term cement refers to a calcined mixture of limestone and clay. Its utility in engineering is unmatched due to its compressive strength. Figuratively, it denotes the act of solidifying or reinforcing a status, opinion, or relationship, often implying a sense of permanence that is difficult to reverse.
Etymologically derived from the Latin caementum, cement signifies both the physical binder of the built environment and the metaphorical adhesive of social or political structures. Its usage in literature often evokes images of permanence, industrial growth, or the rigidity of urban landscapes. Understanding its dual nature—as a chemical compound and a linguistic tool for describing stability—is key to mastering its nuance.
30秒でわかる単語
- Cement is a grey powder.
- It acts as a binder.
- It is used to make concrete.
- It is used metaphorically for stability.
When you look at a building site, you are likely seeing cement in action. It is the fundamental ingredient that holds our modern world together. Think of it as the 'glue' of the construction industry.
As a noun, it refers to the powdery substance itself. When you add water, a chemical reaction occurs, turning that soft powder into a rock-hard solid. This is why we use it to build everything from sidewalks to skyscrapers.
It is important to remember that cement and concrete are not the same thing. Cement is just one part of the recipe for concrete. Without cement, we wouldn't have the sturdy bridges or buildings we see every day.
The word cement has a fascinating history that stretches back to ancient times. It comes from the Latin word caementum, which originally meant 'rough, uncut stone' or 'chippings of stone'.
The Romans were the true masters of this technology. They discovered that by mixing volcanic ash with lime, they could create a substance that would harden even underwater. This allowed them to build massive structures like the Pantheon, which is still standing today!
Over the centuries, the word evolved through Old French as cement before entering the English language in the 14th century. It has kept its core meaning of a 'binding material' throughout its journey, proving that some building blocks of language are just as durable as the material itself.
In everyday conversation, you will mostly hear cement used in the context of construction or DIY projects. It is a very neutral, functional word.
You will often hear it paired with verbs like pour, mix, or set. For example, 'We need to pour the cement before it rains.' It is also used figuratively to describe strengthening a relationship, as in 'to cement a friendship'.
In formal writing, it is used in architectural or engineering contexts. Whether you are talking about a small home repair or a massive infrastructure project, cement is the standard, professional term to use.
Though cement is a physical material, we often use it to describe abstract concepts. Here are some common ways it appears in English:
- To cement a deal: To make an agreement firm or permanent.
- Set in cement: Something that cannot be changed.
- Cement a relationship: To make a bond between people stronger.
- Cement one's position: To make one's status or rank secure.
- Cement the cracks: To fix minor problems before they become big ones.
The word cement is typically an uncountable noun when referring to the material. You don't usually say 'a cement' or 'cements' unless you are talking about different varieties or types.
Pronunciation is straightforward but watch the stress! In both British and American English, the stress is on the second syllable: /sɪˈment/. It rhymes with lament, event, and prevent.
As a verb, it follows regular patterns: cemented, cementing. It is a transitive verb, meaning it usually needs an object, such as 'The victory cemented his place in history.'
Fun Fact
The Romans used volcanic ash in their cement, making it stronger over time.
Pronunciation Guide
Stress on the second syllable.
Clear stress on the second syllable.
Common Errors
- Misplacing stress on first syllable
- Pronouncing it like 'semen'
- Hard 't' at the end
Rhymes With
Difficulty Rating
easy
moderate
moderate
easy
What to Learn Next
Prerequisites
Learn Next
上級
Grammar to Know
Uncountable Nouns
I need some cement.
Transitive Verbs
He cemented the deal.
Compound Nouns
Cement mixer.
Examples by Level
The builder uses cement.
builder = construction worker
Subject-verb agreement.
Cement is grey.
grey = color
Simple sentence.
I need cement.
need = require
Basic verb.
It is hard cement.
hard = solid
Adjective usage.
Mix the cement.
mix = stir together
Imperative verb.
The wall has cement.
wall = part of a house
Preposition usage.
Buy some cement.
buy = purchase
Quantifier usage.
The cement is wet.
wet = contains water
State of being.
The workers poured the cement.
Cement is in the bag.
We used cement for the patio.
The cement is drying now.
He mixed the cement well.
Cement makes the bricks stick.
They need more cement.
The cement is very strong.
The bridge was built using reinforced cement.
We need to cement the bricks together.
The new contract will cement our partnership.
Cement is a key component of concrete.
The workers are mixing the cement in a large drum.
He wants to cement his reputation as a leader.
The cement set overnight.
They added water to the cement.
The treaty was signed to cement the peace between the two nations.
The foundation was made of high-quality cement.
He is trying to cement his status in the company.
The cracks in the wall were filled with cement.
Their shared experience helped to cement their friendship.
The construction crew is working with wet cement.
We need to cement the alliance before the meeting.
The cement industry is growing rapidly.
The agreement served to cement the strategic partnership between the two firms.
The architect specified a particular type of cement for the load-bearing walls.
His performance in the final game cemented his legacy as the greatest player.
The mixture of water and cement creates a chemical reaction that generates heat.
They sought to cement their influence in the region through infrastructure projects.
The rapid setting of the cement caused some logistical issues.
The historical evidence serves to cement the theory.
He used his speech to cement his position on the issue.
The monument stands as a testament to the cement and steel of the industrial age.
The diplomat worked tirelessly to cement the fragile ceasefire.
The geological formation was held together by a natural cement of mineral deposits.
The artist used cement as a medium for his brutalist sculptures.
The alliance was cemented by decades of mutual trust.
The decision cemented his fate in the eyes of the public.
The discovery cemented the scientists' belief in the new hypothesis.
The city's infrastructure relies heavily on the quality of its cement.
よく使う組み合わせ
Idioms & Expressions
"set in stone"
unchangeable
The schedule isn't set in stone.
neutral"cement a deal"
finalize an agreement
We need to cement the deal today.
business"cement one's reputation"
make one's status permanent
This win will cement his reputation.
neutral"crack the cement"
break a barrier
They finally cracked the cement of bureaucracy.
metaphorical"cement the cracks"
fix small problems
We need to cement the cracks in our plan.
casual"under the cement"
hidden or buried
The old pipes are under the cement.
literalEasily Confused
similar construction use
cement is the ingredient; concrete is the result
Cement is the powder; concrete is the sidewalk.
similar sound
sediment is natural dirt in water
The river had a lot of sediment.
both are binders
mortar is for bricks; cement is for concrete
The mortar holds the bricks.
both are pastes
grout is for tiles
Clean the grout in the shower.
Sentence Patterns
Subject + cement + object
He cemented his legacy.
Mix + cement + with + noun
Mix the cement with water.
The + cement + is + adjective
The cement is dry.
Use + cement + to + verb
Use cement to build.
Cement + noun + is + adjective
The cement wall is strong.
語族
Nouns
Verbs
Adjectives
関連
How to Use It
8
Formality Scale
よくある間違い
Cement is the powder; concrete is the finished mix.
It is an uncountable noun.
The 't' is often subtle in natural speech.
Use 'cement' as a modifier (e.g., cement wall).
Sediment is natural matter in water; cement is manufactured.
Tips
Memory Palace
Imagine a bag of cement in your hallway.
Native Usage
Use 'cement' for the powder, 'concrete' for the path.
Cultural Insight
It represents urban growth.
Grammar Shortcut
It is always singular.
Say It Right
Stress the second syllable.
Don't Make This Mistake
Don't say 'a cement'.
Did You Know?
Romans invented it.
Study Smart
Use it in a sentence about your house.
Memorize It
Mnemonic
CEMENT: Can Everyone Mix Every New Thing?
Visual Association
A grey bag with a brick wall behind it.
Word Web
チャレンジ
Look at a sidewalk and say 'This is made of concrete, which started as cement'.
語源
Latin
Original meaning: rough stone chippings
文化的な背景
None
Used ubiquitously in construction and home improvement culture.
Practice in Real Life
Real-World Contexts
at a construction site
- pour the cement
- mix the batch
- let it set
in business
- cement a deal
- cement a partnership
- cement the agreement
at home
- fix the crack
- patch the wall
- buy a bag
in history
- Roman cement
- ancient structures
- modern engineering
Conversation Starters
"Have you ever helped build something with cement?"
"Why do you think cement is so important?"
"Can you think of a relationship that was cemented by an event?"
"What is the difference between cement and concrete?"
"Would you like to learn how to mix cement?"
Journal Prompts
Describe a building you saw today.
Write about a time you made something permanent.
What does the word 'cement' mean to you?
How would the world look without cement?
よくある質問
8 問No, it is a powder made from minerals.
Absolutely not, it is toxic.
Yes, it hardens if it gets wet.
Due to the minerals like iron and clay.
No, it is fire-resistant.
Usually 24-48 hours.
Mortar is cement mixed with sand and lime for bricks.
Yes, many artists use it for sculptures.
自分をテスト
The builder needs ___ to make the wall.
Cement is the binding agent.
What is cement?
Cement is a powder.
Cement and concrete are exactly the same thing.
Cement is an ingredient in concrete.
Word
意味
Distinguishing ingredients.
Subject + verb + object.
スコア： /5
Summary
Cement is the essential grey powder that binds our world together, both in physical buildings and metaphorical relationships.
- Cement is a grey powder.
- It acts as a binder.
- It is used to make concrete.
- It is used metaphorically for stability.
Memory Palace
Imagine a bag of cement in your hallway.
Native Usage
Use 'cement' for the powder, 'concrete' for the path.
Cultural Insight
It represents urban growth.
Grammar Shortcut
It is always singular.
例文
They poured cement for the foundation.
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