Grammar Rule in 30 Seconds
Use 'one' (singular) and 'ones' (plural) to replace a previously mentioned countable noun to avoid repetitive and clunky sentences.
- Use 'one' for singular countable nouns: 'I like that car, the red one.'
- Use 'ones' for plural countable nouns: 'Which shoes? The black ones.'
- Never use 'one/ones' for uncountable nouns like water, advice, or luggage.
Overview
one과 ones입니다.one과 ones는 앞서 언급된 명사를 대신하는 대용어(pro-form) 역할을 합니다. 한국어에서는 보통 «어떤 것», «그것»이라고 하거나, 아예 목적어를 생략해버리는 경우가 많지만, 영어는 문장 구조상 명사 자리를 비워둘 수 없기에 이 장치가 필수적입니다. 예를 들어, "새 차가 필요해.I need a new car. My old car is unreliable.라고 하면 틀린 문장은 아니지만, 초급 수준의 문장처럼 들립니다. 여기서 car를 one으로 바꾸어 My old one is unreliable.라고 표현하는 순간, 문장은 훨씬 매끄럽고 원어민스러운 흐름을 갖게 됩니다.one이 '하나'를 뜻하는 숫자가 아니라, 문장의 품격을 높여주는 명사 대용어로서 어떻게 작동하는지, 그리고 한국인 학습자들이 가장 자주 실수하는 지점이 어디인지 심도 있게 다루어 보겠습니다.one과 ones의 핵심 원리는 가산 명사(Countable Noun)의 반복 회피에 있습니다. 한국어와 영어의 가장 큰 차이점 중 하나는 '명사의 수(Number)'에 대한 민감도입니다. 한국어는 «그거 좀 보여줘»라고 할 때 그것이 단수인지 복수인지 문맥으로 파악하지만, 영어는 반드시 one(단수)과 ones(복수)를 구분하여 사용해야 합니다.one과 유사한 기능을 합니다. 하지만 결정적인 차이가 있습니다.- 한국어: «빨간 것(단수/복수 공용)» 혹은 생략.
- 영어:
The red one(단수),The red ones(복수).
Do you want the small one?처럼 반드시 형용사 뒤에 one을 붙여 명사의 자리를 채워줘야 합니다. 형용사만 덩그러니 남겨두는 것은 영어 문법에서 매우 어색한 구조입니다.it과의 결정적 차이it과 one의 차이입니다.it은 특정한 바로 그 물건(the same identity)을 가리킵니다.one은 같은 종류의 불특정한 물건(the same kind/category)을 가리킵니다.
I want to buy one.이 맞습니다. 만약 I want to buy it.이라고 하면 친구가 들고 있는 그 물리적인 기기를 사고 싶다는 뜻이 되어버립니다.one / ones | it / they |one(단수), ones(복수) | it(단수), they(복수) |a red one) | 형용사의 수식을 직접 받지 못함 |one과 ones를 사용할 때는 관사와 형용사의 조합이 매우 중요합니다. 다음 패턴들을 익혀두면 문장을 구성할 때 즉각적으로 적용할 수 있습니다.onea/an + adjective + one: 불특정한 종류 중 하나를 선택할 때 사용합니다.I have a laptop, but I need a more powerful one.(나는 노트북이 있지만, 더 성능이 좋은 것이 필요해.)the + (adjective) + one: 특정 범위 내에서 정해진 것을 가리킬 때 사용합니다.Which cake would you like? I’ll take the chocolate one.(어떤 케이크를 원하세요? 초콜릿 거로 할게요.)this / that + one: 가까이 있거나 멀리 있는 것을 지칭할 때 사용합니다.This one is too expensive, but that one is affordable.(이건 너무 비싸지만, 저건 가격이 적당하네요.)
onesadjective + ones: 복수 형태의 명사를 대신합니다. (주의: 복수이므로a/an은 붙지 않습니다.)I don't like these shoes. Do you have any comfortable ones?(이 신발들 마음에 안 들어요. 편한 것들 좀 있나요?)the + (adjective) + ones: 특정된 복수 대상을 가리킵니다.The blue curtains are nice, but the white ones match the wall better.(파란 커튼도 좋지만, 하얀 것들이 벽이랑 더 잘 어울려요.)these / those + ones: 구어체에서 자주 쓰이지만,these나those단독으로도 명사를 대신할 수 있으므로 선택적으로 사용합니다.I’ll take these ones.(이것들로 할게요.)
either, neither, another 뒤에서는 one을 생략해도 무방한 경우가 많습니다.This is the cheapest (one) in the shop.I don't like this color. Show me another (one).
one과 ones가 어떻게 쓰이는지 구체적인 시나리오를 통해 살펴보겠습니다.I’ll have a latte, a cold one, please.(라떼 주세요, 차가운 거로요.)- 여기서
one은 앞의latte를 가리킵니다. 만약it을 쓴다면 문맥상 어색해집니다.
The leather jacket is stylish, but the denim one seems more practical for daily use.(가죽 자켓이 멋지긴 한데, 데님으로 된 게 일상적으로 입기엔 더 실용적일 것 같아.)one을 사용함으로써jacket이라는 단어의 중복을 피하고 문장의 리듬감을 살렸습니다.
We have reviewed several strategies. The most innovative one involves AI integration.(우리는 여러 전략을 검토했습니다. 가장 혁신적인 전략은 AI 통합을 포함하고 있습니다.)strategies중 하나를 콕 집어 말할 때the most innovative one이라고 표현하여 전문성을 높입니다.
one은 '사람들' 혹은 '일반적인 개인'을 뜻하기도 합니다. 이는 C1 레벨에서 자주 등장하는 문학적/학술적 용법입니다.One must be careful when interpreting these results.(이 결과들을 해석할 때는 주의를 기울여야 한다.)- 이때
one은 특정 명사를 대체하는 것이 아니라anyone혹은people in general의 의미를 갖습니다.
one 사용하기one은 반드시 셀 수 있는 명사(Count nouns)만 대신할 수 있습니다. water, advice, information, money 같은 단어는 one으로 받을 수 없습니다.- 잘못된 예:
I need some advice. Can you give me a good one?(X) - 올바른 예:
I need some advice. Can you give me some?또는a good piece of advice?(O) - 이유: 한국어로는 «좋은 거(조언) 하나만 해줘»라고 해서
one이 자연스러워 보이지만, 영어에서advice는 셀 수 없으므로one과 결합할 수 없습니다.
one 사용my, your, his 같은 소유격 뒤에 one을 붙이는 실수를 자주 합니다. 틀린 것은 아니지만, 보통 소유 대명사(mine, yours)를 쓰는 것이 훨씬 자연스럽습니다.- 어색한 예:
My car is red, and your one is blue.(△) - 자연스러운 예:
My car is red, and yours is blue.(O) - 참고: 다만, 소유격과 형용사가 함께 올 때는
one을 반드시 써야 합니다. (My car is red, and your new one is blue.)
ones를 빠뜨리는 경우one을 쓰는 경우가 많습니다.- 잘못된 예:
I like these flowers. I’ll take the red one.(꽃이 여러 송이인데 하나만 고르는 상황이 아니라면 틀림) - 올바른 예:
I’ll take the red ones.(빨간 꽃들 전부를 의미할 때) - 이유: 지시하는 대상의 수량을 정확히 파악하여
one과ones를 일치시켜야 합니다.
one/ones와 비슷해 보이지만 쓰임새가 다른 문법들과 비교해 보겠습니다.one / ones | 동일 종류의 다른 물건 (가산 명사 전용) | I lost my pen. I need a new one. |it / they | 바로 그 물건 (가산/불가산 모두 가능) | I lost my pen. Have you seen it? |that / those | 주로 격식 있는 문장에서 뒤에 수식어구(of...)를 동반할 때 | The population of Seoul is larger than that of Busan. |some | 불가산 명사나 불특정 다수의 복수 명사를 대신할 때 | If you need money, I can lend you some. |that/those와의 차이를 주목하세요. C1 레벨의 독해 지문에서는 The problems of today are different from those of the past. 처럼 those가 the ones를 대신하여 더 격식 있게 쓰이는 경우가 많습니다. those는 뒤에 전치사구나 관계절이 올 때 선호됩니다.one 앞에 관사 a가 꼭 있어야 하나요?a green one처럼 관사가 필요합니다. 하지만 Which one?이나 This one처럼 지시어와 함께 쓰일 때는 관사를 쓰지 않습니다. 또한 복수형인 ones 앞에는 a를 쓸 수 없다는 점을 명심하세요.one으로 받을 수 있나요?idea, problem, solution 등은 추상적이지만 셀 수 있으므로 That’s a good idea. I wish I had thought of one.과 같이 쓸 수 있습니다.one만 써도 되나요?I have many stamps. Do you want one? (우표 많아. 하나 줄까?) 처럼요. 이때 one은 a stamp를 의미합니다.the ones와 those는 완전히 똑같은가요?the ones는 일상 대화에서 형용사와 함께 자주 쓰이고 (the blue ones), those는 뒤에 of나 관계대명사절이 붙는 격식 있는 문장에서 선호됩니다 (those who are interested...).one과 ones가 단순한 숫자의 개념을 넘어, 영어 문장을 얼마나 경제적이고 세련되게 만들어주는지 이해하셨기를 바랍니다. 이제 카페에서, 혹은 회의실에서 «그것»이라고 말하고 싶을 때, it과 one 사이에서 잠시 멈춰 고민해 보세요. 그 고민의 시간이 여러분의 영어를 C1 레벨로 끌어올려 줄 것입니다.Substitution Patterns
| Noun Type | Singular Form | Plural Form | Example |
|---|---|---|---|
|
Countable Noun
|
one
|
ones
|
The red one / The red ones
|
|
Uncountable Noun
|
N/A (Repeat noun)
|
N/A
|
Cold water / Hot water
|
|
After 'Which'
|
Which one?
|
Which ones?
|
Which one do you want?
|
|
After 'This/That'
|
This one / That one
|
These ones / Those ones
|
I'll take this one.
|
|
After Adjectives
|
The big one
|
The big ones
|
I need a bigger one.
|
|
After 'Each'
|
Each one
|
N/A
|
Each one is unique.
|
Meanings
The words 'one' and 'ones' function as substitute pronouns. They allow a speaker to refer back to a countable noun mentioned earlier in the discourse without repeating the noun itself, provided the context makes the identity of the object clear.
Singular Substitution
Replacing a singular countable noun after an adjective or determiner.
“This laptop is faster than my old one.”
“I don't want the small box; I want the big one.”
Plural Substitution
Replacing a plural countable noun to distinguish between groups.
“The new regulations are stricter than the previous ones.”
“I prefer the green apples to the red ones.”
Generic 'One'
Using 'one' as a formal third-person singular pronoun to refer to people in general.
“One must always be careful when crossing the street.”
“One never knows what the future holds.”
Reference Table
| 사용 유형 | 예시 (단수) | 예시 (복수) | 설명 |
|---|---|---|---|
|
일반적 (불특정)
|
I need a phone. I want a new one.
|
These shoes are old. I need new ones.
|
어떤 종류의 불특정한 항목을 가리킬 때 사용해요.
|
|
특정적 (특정)
|
This is the car. The blue one.
|
Which books are yours? The ones on the table.
|
이미 식별된 특정 항목을 가리킬 때 사용해요.
|
|
형용사와 함께
|
I prefer a quiet spot. A cozy one.
|
I like fresh berries. The ripe ones.
|
선택지가 있을 때 어떤 항목인지 구체적으로 지정할 때 사용해요.
|
|
비교 시
|
This movie is better than the last one.
|
The older cars are cheaper than the new ones.
|
같은 종류의 항목들을 비교할 때 사용해요.
|
|
'the other' 뒤에
|
I finished one task; now for the other one.
|
Some studies are positive; the other ones are negative.
|
쌍이나 그룹에서 남은 항목(들)을 가리킬 때 사용해요.
|
격식 수준 스펙트럼
Of the available options, the former one is preferable. (Decision making)
I think the first one is better. (Decision making)
I'll go with the first one. (Decision making)
That first one's the winner. (Decision making)
'One'과 'Ones'의 다재다능함
단수
- a new car a new one
- the red book the red one
복수
- comfortable shoes comfortable ones
- the old files the old ones
기능
- 반복 피하기 문장 흐름을 부드럽게 함
- 비교 차이점 강조
- 형용사와 함께 항목 특정
'One/Ones' vs. 명사 반복
'One' 또는 'Ones' 결정하기
명사를 대체해야 하나요?
명사가 단수인가요? (예: 'car')
명사가 복수인가요? (예: 'cars')
실생활에서의 'One/Ones' 활용
쇼핑
- • Which shirt is the cheaper one?
- • I need new trainers, the comfy ones.
묘사하기
- • My old phone was good, but this new one is amazing.
- • I prefer the blue ones over the red ones.
비교하기
- • This movie is better than the last one.
- • The local restaurants are better than the chain ones.
질문하기
- • Do you have a spare one?
- • Which ones should I take?
수준별 예문
I have a red pen and a blue one.
I have a red pen and a blue one.
Which one is your bag?
Which one is your bag?
I like the small ones.
I like the small ones.
This cup is dirty. Can I have a clean one?
This cup is dirty. Can I have a clean one?
These shoes are too big. Do you have smaller ones?
These shoes are too big. Do you have smaller ones?
I don't like this movie. Let's watch a funny one.
I don't like this movie. Let's watch a funny one.
My car is the white one over there.
My car is the white one over there.
There are two cakes. Which one do you want?
There are two cakes. Which one do you want?
If you need a map, I can lend you one.
If you need a map, I can lend you one.
The hotel was okay, but the one we stayed in last year was better.
The hotel was okay, but the one we stayed in last year was better.
I've lost my keys. I'll have to get some new ones made.
I've lost my keys. I'll have to get some new ones made.
I don't want to buy a cheap laptop; I'd rather save for a good one.
I don't want to buy a cheap laptop; I'd rather save for a good one.
The problems we face today are more complex than the ones our parents faced.
The problems we face today are more complex than the ones our parents faced.
I've tried several methods, but this one seems the most effective.
I've tried several methods, but this one seems the most effective.
Of all the candidates, she is the one most likely to succeed.
Of all the candidates, she is the one most likely to succeed.
We need to replace these old monitors with high-resolution ones.
We need to replace these old monitors with high-resolution ones.
The transition from a traditional economy to a digital one is fraught with challenges.
The transition from a traditional economy to a digital one is fraught with challenges.
His later novels are far more introspective than his early ones.
His later novels are far more introspective than his early ones.
One should always consider the ethical implications of one's research.
One should always consider the ethical implications of one's research.
The criteria for selection were quite rigorous, especially the ones pertaining to experience.
The criteria for selection were quite rigorous, especially the ones pertaining to experience.
The dichotomy between the perceived reality and the actual one is a central theme in the play.
The dichotomy between the perceived reality and the actual one is a central theme in the play.
While some critics praised the performance, the more discerning ones found it lacking in nuance.
While some critics praised the performance, the more discerning ones found it lacking in nuance.
The architectural styles of the northern provinces differ significantly from the ones found in the south.
The architectural styles of the northern provinces differ significantly from the ones found in the south.
Should you require a replacement, we can dispatch a refurbished one immediately.
Should you require a replacement, we can dispatch a refurbished one immediately.
혼동하기 쉬운
Learners use 'one' when they mean a specific, identical object.
Using 'one' for uncountable nouns.
자주 하는 실수
I like the blue.
I like the blue one.
I have two ones.
I have two.
This is my one.
This is mine.
The advice he gave was a good one.
The advice he gave was good.
문장 패턴
I don't like the ___, I prefer the ___ one.
Of all the ___, the ___ ones are the most ___.
Real World Usage
Do you have this shirt in a larger one?
My previous role was similar to this one.
I'll have the spicy one, please.
Is the light a blinking one or a steady one?
This theory is more robust than the previous one.
The old version was better than the new one.
'대체'를 떠올려 보세요
단수와 복수를 섞어 쓰지 마세요
관사에 신경 쓰세요
자연스러운 흐름
형용사의 힘을 활용하세요
Smart Tips
Check if the noun is countable. If it is, swap the second mention for 'one' or 'ones'.
In spoken English, adding 'one' makes your pointing more specific and natural.
Stop! Use 'mine' or 'yours' unless you have an adjective in the middle.
Ensure you stay consistent. If you start with 'one', you must use 'one's' for possession, not 'his' or 'their'.
발음
The Schwa in 'One'
In rapid speech, 'one' is often unstressed and the vowel reduces slightly, though it usually retains its /wʌn/ sound.
Stress on Adjectives
When using 'the [Adjective] one', the stress usually falls on the adjective, not on 'one'.
Contrastive Stress
I don't want the BLUE one, I want the RED one.
Emphasizing the difference between two choices.
암기하기
기억법
Countable? Use One/Ones. Uncountable? Leave it alone!
시각적 연상
Imagine a shelf of identical jars. You point to 'the blue one' or 'the small ones'. If you try to point to 'one' water, the water slips through your fingers because you can't count it.
Rhyme
If you've said the noun before, use 'one' to open the door.
Story
A shopper enters a store and asks for 'the hat'. The clerk shows ten hats. The shopper says, 'Not that one, the red one!' The clerk then shows shoes. The shopper says, 'Not those ones, the leather ones!'
Word Web
챌린지
Look around your room. Find three pairs of similar objects (e.g., two books, two pens). Describe which 'one' you prefer for each pair using an adjective.
문화 노트
British speakers are slightly more likely to use 'one' as a generic pronoun (e.g., 'One does try one's best') in formal contexts compared to Americans.
In the US, 'these ones' and 'those ones' are very common in casual speech, though teachers often correct them to just 'these' or 'those'.
Derived from the Old English 'ān', meaning 'one' (the number).
대화 시작하기
If you could trade your current phone for a newer one, which one would you choose?
When buying clothes, do you prefer cheap ones that you can replace often, or expensive ones that last?
일기 주제
자주 하는 실수
Test Yourself
I have two bags, but I prefer the black ___.
Choose the correct sentence:
Find and fix the mistake:
My phone is broken. I need a new ones.
Score: /3
연습 문제
8 exercisesI don't like these shoes. I prefer the leather ___.
Which sentence is grammatically correct?
Find and fix the mistake:
This is my one book.
I have a red car and a blue car.
1. Apples, 2. Water, 3. Laptop
A: Which tie should I wear? B: Wear the ___.
You can use 'one' to replace the word 'information'.
1. Red car, 2. Cold milk, 3. Big houses, 4. My pen
Score: /8
Practice Bank
13 exercisesThis coffee machine makes good espresso. Do you have a smaller ___ for home?
The company released several new products. The most innovative ___ quickly sold out.
If you're looking for a challenging project, the research proposal is definitely the ___.
My old car was reliable, but the new ones is much faster.
The small dogs are cute, but I prefer the big one.
Among the various solutions, the most practical ones seemed to be neglected.
Which sentence is correct?
Which of these sentences is correct?
Translate into English: 'Estas gafas son nuevas, pero las viejas eran más cómodas.'
Translate into English: 'Ella tiene dos gatos, y el blanco es el más juguetón.'
Arrange these words into a coherent sentence:
Create a grammatically correct sentence:
Match the noun phrase with its correct substitute:
Score: /13
자주 묻는 질문 (8)
Yes, you can use 'one' to refer to people, especially when distinguishing between them. For example: 'She is the one in the red dress.'
In formal writing, it is better to just use 'these'. However, 'these ones' is very common in spoken English and is generally accepted in casual contexts.
English uses possessive pronouns like `mine`, `yours`, and `hers` for this purpose. You only use `one` after a possessive if there is an adjective: 'my blue one'.
No. For uncountable nouns like `water`, `advice`, or `happiness`, you must repeat the noun or use a word like `some` or `any`.
`It` refers to the exact same object mentioned before. `One` refers to a different object of the same type.
You can often omit 'one' after superlatives (e.g., 'This is the best') or after 'this/that' if the meaning is clear.
Yes, both as a substitute word to avoid repetition and as a formal generic pronoun meaning 'a person'.
Yes, for example: 'The ones who finished early can leave.'
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
el/la + adjective
Spanish does not need a substitute word like 'one'.
celui/celle
French pronouns change based on gender, whereas 'one' is gender-neutral.
der/die/das + adjective ending
German relies on case and gender endings rather than a substitute noun.
no (の)
Japanese 'no' is very similar in function to English 'one'.
al- + adjective
Arabic lacks a direct equivalent to the 'prop-word' one.
de (的)
Like Japanese, Chinese uses a particle rather than a pronoun.
Learning Path
Prerequisites
관련 동영상
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