Explanation at your level:
A compound thing is made of two or more parts. Imagine a car; it has wheels, a motor, and seats. All these parts together make the car. We say the car is a compound object because it is not just one simple piece.
You use compound when you describe something that is not simple. For example, a 'compound word' is two words joined together. 'Rain' and 'coat' make 'raincoat'. It is very useful for explaining how things are built from smaller parts.
In English, we often use compound to talk about grammar, like a 'compound sentence' which joins two ideas. You might also hear it in finance regarding 'compound interest', where your money grows faster because you earn interest on your interest. It is a great word for describing complexity.
The term compound is versatile. It can describe physical substances in chemistry, linguistic structures, or even abstract concepts like 'compounding a problem'. When you 'compound' a situation, you are adding to it, usually making a bad situation worse. It is a precise word for academic and professional writing.
Beyond its basic definition, compound functions as a sophisticated descriptor for multi-faceted entities. In technical fields, it denotes a substance formed by the chemical union of two or more elements in definite proportions. Figuratively, it implies a synergy where the whole is greater than the sum of its parts. Mastering this word allows you to articulate complex relationships between components with high precision.
At a mastery level, compound invites us to consider the etymological depth of 'putting together'. It appears in literary analysis to describe characters or plots that are layered and intricate. Whether discussing the 'compounding' of historical grievances or the 'compound' nature of modern identity, the word serves as a bridge between the concrete and the abstract, requiring a nuanced understanding of context to use effectively.
30秒词汇
- Means made of two or more parts.
- Used in science, grammar, and finance.
- Pronunciation changes with part of speech.
- Can mean to make a problem worse.
When you hear the word compound, think about the idea of 'putting things together.' It is an adjective used to describe something that isn't just one simple piece, but a collection of parts that work as one.
You might see this in science class, where a compound substance is made of different elements bonded together. In language, we use it to talk about words like 'sunflower' or 'raincoat,' where two separate words join to create a new meaning. It is a very handy word for describing complexity in a simple way.
The word compound has a fascinating journey through time. It comes from the Latin word componere, which literally means 'to put together' (com- meaning 'together' and ponere meaning 'to place').
It entered the English language around the 14th century through Old French. Originally, it was used in legal and mercantile contexts to describe settling a debt or agreement, but over the centuries, it expanded to describe physical objects and chemical mixtures. It is a classic example of how a simple Latin root can branch out into many different scientific and everyday meanings.
You will find compound used in both formal and informal settings. In formal contexts, it is common in chemistry (e.g., 'a chemical compound') or finance (e.g., 'compound interest').
In casual conversation, it is slightly less common, though you might hear it when discussing grammar or specialized equipment. It pairs well with nouns like interest, sentence, word, and substance. Using it correctly helps you sound more precise when describing how things are constructed or how they grow over time.
While 'compound' itself isn't always the center of an idiom, it appears in many common phrases. 1. Compound interest: Money that earns interest on top of previous interest. 2. Compound the problem: To make a bad situation worse. 3. Compound fracture: A medical term where a bone breaks through the skin. 4. Compound sentence: A grammar term for two independent clauses joined by a conjunction. 5. Compound interest (metaphorical): Used to describe how a small good (or bad) habit grows significantly over time.
As an adjective, compound is usually placed before the noun it modifies. The British pronunciation is /ˈkɒm.paʊnd/ while the American is /ˈkɑːm.paʊnd/.
It does not have a plural form when used as an adjective, but as a noun, it becomes 'compounds'. It rhymes with 'found', 'ground', 'mound', 'round', and 'sound'. Remember that the stress is usually on the first syllable when used as a noun or adjective, but on the second syllable if you use it as a verb (meaning 'to mix').
Fun Fact
The root 'ponere' is also in 'position' and 'post'.
Pronunciation Guide
Stress on the first syllable, clear 'o' sound.
Stress on the first syllable, 'ah' sound.
Common Errors
- Stressing the second syllable
- Mispronouncing the 'ou' diphthong
- Adding an extra syllable
Rhymes With
Difficulty Rating
Easy to understand
Useful for essays
Good for clarity
Common in lectures
What to Learn Next
Prerequisites
Learn Next
高级
Grammar to Know
Adjective placement
A compound word.
Compound sentences
I went, and he stayed.
Stress patterns
COM-pound vs com-POUND
Examples by Level
A car is a compound machine.
machine made of parts
adjective usage
This is a compound word.
two words joined
adjective usage
It is a compound object.
made of parts
adjective usage
The drug is a compound.
a chemical mix
noun usage
We need a compound tool.
multi-use tool
adjective usage
They made a compound.
a mixture
noun usage
The house is compound.
many rooms
adjective usage
Use a compound word.
join words
adjective usage
The word 'notebook' is a compound word.
He studied the chemical compound in class.
The compound interest grew over time.
We built a compound structure for the project.
She used a compound fertilizer for her garden.
The compound effect of his hard work paid off.
They lived in a large residential compound.
The recipe is a compound of many spices.
His errors only served to compound the problem.
The compound sentence was difficult to analyze.
She invested in a fund with compound interest.
The building is a compound of several architectural styles.
The medicine is a complex organic compound.
He felt a compound emotion of joy and sadness.
The compound lens allowed for better focus.
They created a compound solution for the energy crisis.
The situation was a compound of bad luck and poor planning.
He suffered a compound fracture during the game.
The committee proposed a compound strategy for growth.
The compound nature of the issue requires careful study.
She is researching the properties of this new compound.
The compound growth rate is very impressive.
His argument was a compound of logic and passion.
The compound effect of these policies will be felt for years.
The film is a compound of tragedy and dark comedy.
His identity is a compound of many different cultures.
The compound complexity of the legal system is daunting.
They synthesized a new compound in the laboratory.
The compound impact of the storm was devastating.
She presented a compound argument to the board.
The compound interest calculation is quite simple.
The architecture is a compound of modern and classic styles.
The work is a compound of philosophical inquiry and personal memoir.
The compound nuances of the text are often overlooked.
He analyzed the compound reaction of the chemical agents.
The compound growth in the sector has been unprecedented.
Their relationship is a compound of deep respect and occasional friction.
The compound effect of climate change is accelerating.
She is an expert in the synthesis of organic compounds.
The compound structure of the poem adds to its mystery.
常见搭配
Idioms & Expressions
"compound a felony"
to take payment to ignore a crime
He was arrested for compounding a felony.
legal"compound interest"
interest on interest
The magic of compound interest is powerful.
neutral"compound the issue"
to make a problem worse
Arguing will only compound the issue.
neutral"as a compound"
when viewed as a whole
The results are positive as a compound.
formal"compound of"
a mixture of things
His personality is a compound of many traits.
literaryEasily Confused
Both imply difficulty
Complex is abstract, compound is structural
A complex plan vs a compound substance
Both involve mixing
Mixture is physical, compound is chemical
A mixture of sand vs a chemical compound
Similar root
Composed is a verb/adj about being made of
The song is composed of notes
Same spelling
Verb stress is on second syllable
Do not compound the error
Sentence Patterns
Subject + is a compound of + noun
The alloy is a compound of metals.
Subject + compound + the + noun
Don't compound the issue.
This is a compound + noun
This is a compound word.
The compound + noun + is + adj
The compound interest is high.
It is a compound + noun + structure
It is a compound sentence structure.
词族
Nouns
Verbs
Adjectives
相关
How to Use It
7
Formality Scale
常见错误
The pronunciation changes based on part of speech.
Compound implies physical or structural joining.
Adjectives do not take 's' in English.
Compound is a noun for a substance, not an abstract state.
While 'compound' works, 'exacerbate' is often clearer.
Tips
Memory Palace
Imagine a house made of Lego bricks.
Native Speaker Tip
Use it to sound precise in science.
Cultural Insight
Common in financial talk.
Grammar Shortcut
Adjectives don't pluralize.
Say It Right
COM-pound (noun), com-POUND (verb).
Mistake Check
Don't say 'compounds' for the adjective.
Did You Know?
It comes from Latin 'ponere'.
Study Smart
Learn 5 compound words today.
Memorize It
Mnemonic
COM (together) + POUND (put down/place) = Put together.
Visual Association
A puzzle being put together.
Word Web
挑战
Find 5 compound words in your room.
词源
Latin
Original meaning: to put together
文化背景
None
Commonly used in school subjects like chemistry and grammar.
Practice in Real Life
Real-World Contexts
Chemistry Class
- chemical compound
- organic compound
- bond together
Grammar Class
- compound word
- compound sentence
- join two words
Finance
- compound interest
- compound growth
- annual rate
General Discussion
- compound the problem
- compound effect
- made of parts
Conversation Starters
"Can you name a compound word?"
"How does compound interest work?"
"What is a compound substance?"
"Why do people say 'don't compound the problem'?"
"Is English a compound language?"
Journal Prompts
Write about a compound word you use often.
Describe a situation where someone compounded a problem.
Explain the difference between a mixture and a compound.
How has your knowledge of English 'compounded' over time?
常见问题
8 个问题Yes, it means to mix or make worse.
Stress the first syllable: COM-pound.
It depends on the context.
Two words joined as one.
Rarely, usually for things.
Often, but compound is more specific to parts.
Compounds.
Because it refers to growth on growth.
自我测试
A raincoat is a ___ word.
It joins two words.
Which is a compound?
These are chemical compounds.
Compound interest is good for savers.
It earns interest on interest.
Word
意思
Definitions match.
Did compound the problem.
得分： /5
Summary
Compound means joined together, whether in science, words, or even problems.
- Means made of two or more parts.
- Used in science, grammar, and finance.
- Pronunciation changes with part of speech.
- Can mean to make a problem worse.
Memory Palace
Imagine a house made of Lego bricks.
Native Speaker Tip
Use it to sound precise in science.
Cultural Insight
Common in financial talk.
Grammar Shortcut
Adjectives don't pluralize.
例句
The word 'notebook' is a compound word made of 'note' and 'book'.
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