Grammar Rule in 30 Seconds
Use 'another' for one more singular item, 'other' for general plurals, and 'the other' for the specific remaining choice.
- Another + Singular Noun: 'I'd like another cookie.' (one more)
- Other + Plural Noun: 'I have other friends.' (general/unspecified)
- The Other + Specific Noun: 'Where is the other shoe?' (the last one left)
Overview
another、other、the otherの使い分けは、中級から上級へステップアップするための重要な関門です。日本語には「他の」「もう一つの」「残りの」といった言葉がありますが、これらは文脈に応じて使い分けられることが多く、英語のように「単数か複数か」「特定か不特定か」という厳格な文法ルールに縛られていません。日本語では「他の本」と言えば、それが特定の本なのか、不特定の本なのかを文脈で判断しますが、英語ではこの区別を単語そのものに含める必要があります。another（an+other）、other、the otherのすべてが含まれてしまうため、直訳しようとすると混乱が生じます。このセクションでは、単なる暗記ではなく、なぜ英語でこれほどまでに細かく区別するのか、そのロジックを解き明かします。この概念をマスターすることは、あなたの英語に「曖昧さのない正確さ」をもたらし、ビジネスシーンや日常会話での誤解を劇的に減らすことにつながります。さあ、一緒にこのパズルのピースを整理していきましょう。another、other、the otherを正しく使うためには、以下の2つの質問を自分に投げかける必要があります。これこそが、日本語にはない英語特有の「思考プロセス」です。- 1数（Number）: それは単数ですか、それとも複数（または不可算）ですか？
- 2特定性（Definiteness）: それは相手と共有できている「特定の対象」ですか、それとも「どれでもいい不特定の対象」ですか？
Another: これはan+otherです。つまり「1つの（an）」という性質が残っています。日本語で言えば「もう1つ」「別の1つ」です。an appleと言うように、常に単数扱いです。Other/Others: これは「不特定の複数」を指します。日本語の「他の〜」に相当しますが、冠詞のtheがつかないため、どれか特定のものではありません。The other: ここにtheがあることが最大のポイントです。theは「話し手と聞き手が『あ、あれのことね』と特定できるもの」につきます。つまり、セットの中の「残りのもの」を指す際に使います。日本語で言えば「残りの方」「もう一方」です。
Another | もう1つの、別の1つ | 単数・不特定 |Other (+名詞) | 他の〜（複数） | 複数・不特定 |Others (代名詞) | 他の人々、他のもの | 複数・不特定 |The other | 残りの1つ、もう一方 | 単数・特定 |The others | 残りのすべて | 複数・特定 |anotherは単数名詞と、otherは複数名詞と結びつくというルールを身体に染み込ませましょう。Another | another + 単数可算名詞 | I need another cup of coffee. |Other | other + 複数可算名詞 | Do you have other ideas? |Others | others (代名詞) | Some like it, others don't. |The other | the other + 単数名詞 | One hand is cold, the other hand is warm. |The others | the others (代名詞) | Two are here, where are the others? |Anotherを使うとき：I'd like another coffee. です。anの響きを意識してください。Other / Othersを使うとき：Are there any other questions?と言いますね。これは「特定の質問リスト」ではなく、「何かあれば何でも」という不特定の広がりを指しています。The otherを使うとき：the を使います。I have two brothers. One is a doctor, and the other is a teacher. このように、セットの残りを指すときは常に the が必要です。- 1
Anotherの後に複数形を置くミス
- 誤:
I need another pens. - 正:
I need other pens. - 理由:
Anotherはanを含んでいるため、常に単数です。日本語の「もう一つ」という感覚が強く、複数形にまで適用してしまうL1干渉です。
- 1
OtherとOthersの使い分けミス
- 誤:
Some people like cats, other hate them. - 正:
Some people like cats, others hate them. - 理由:
Otherは形容詞（限定詞）なので、後ろに名詞が必要です。Othersは代名詞として単独で使えます。日本語には「形容詞と代名詞の語形変化」の区別がないため、この混同が起こりやすいです。
- 1
Theを忘れるミス
- 誤:
I have two keys. One is here, and other is in my bag. - 正:
I have two keys. One is here, and the other is in my bag. - 理由: 日本語では「もう一つ」と言うだけで「残りの」という意味が含まれますが、英語では「残りの」という特定性を
theで明示しないと、聞き手は「まだ他にも鍵があるのか？」と混乱します。
AnotherとThe otherの比較は、多くの学習者が躓くポイントです。Another | The other |Can I have another? | This is one, the other is that. |- Q:
Anotherは複数名詞と一緒に使えないのですか？ - A: 原則として単数ですが、
another three days（あと3日）のように、数字や時間の単位を伴う場合は複数名詞と使えます。これは「3日というまとまり」を1つの単位として捉えているからです。
- Q:
OthersとThe othersはどう違いますか？ - A:
Othersは「他の人たち（不特定）」、The othersは「残りの人たち（特定）」です。例えば、クラスの生徒のうち、一部が帰った後に残っている全員を指すならthe othersです。
- Q:
Other thanはどのように使いますか？ - A:
Other thanは「〜以外に」という意味です。I have no other plans other than working.（仕事以外に予定はない）のように使います。これはotherの「〜とは異なる」というニュアンスを活かした便利な表現です。
Determiner vs. Pronoun Usage
| Type | Singular | Plural | Uncountable |
|---|---|---|---|
|
Indefinite (General)
|
Another (Another book)
|
Other (Other books)
|
Other (Other information)
|
|
Definite (Specific)
|
The other (The other book)
|
The other (The other books)
|
The other (The other water)
|
|
Pronoun (No Noun)
|
Another / The other
|
Others / The others
|
N/A
|
Meanings
These words are used to refer to something different, remaining, or additional within a group or context.
Another (Singular/Indefinite)
Used with singular countable nouns to mean 'one more' or 'a different one'.
“Can I have another glass of water?”
“Let's go to another restaurant.”
Other (Plural/Indefinite)
Used with plural nouns or uncountable nouns to mean 'different' or 'additional' in a general sense.
“Other people might disagree.”
“Do you have other information?”
Others (Plural Pronoun)
A pronoun used to replace 'other + plural noun' when the noun is already understood.
“Some students stayed, while others left.”
“I have my books; where are the others?”
The Other (Specific Singular)
Refers to the second of two things or the remaining one in a specific set.
“I have two pens; one is red, the other is blue.”
“He is on the other side of the street.”
The Others (Specific Plural Pronoun)
Refers to all the remaining items or people in a specific group.
“Three of us are here; the others are still coming.”
“I've finished these tasks, but the others are hard.”
Reference Table
| 単語 | 意味 | 名詞との組み合わせ | 代名詞の形 | 特定・不特定 |
|---|---|---|---|---|
|
Another
|
もう一つ、別のもの
|
単数可算名詞
|
Another
|
不特定
|
|
Other
|
他の、追加の
|
複数名詞・不可算名詞
|
Others
|
不特定
|
|
The Other
|
（2つのうち）もう一方
|
単数可算名詞
|
The other one
|
特定
|
|
The Other
|
（セットのうち）残りの全部
|
複数可算名詞
|
The others
|
特定
|
フォーマル度スペクトル
Do you possess any other alternatives? (shopping)
Do you have any other options? (shopping)
Got another one? (shopping)
Anythin' else? (shopping)
Another, Other, The Other の全体像
Another
- もう一つ One more
- 別のもの A different one
- 単数名詞 Singular Countable
Other
- 追加の（不特定） Additional (general)
- 別の（不特定） Different (general)
- 複数名詞 Plural Countable
- 不可算名詞 Uncountable
The Other
- 2つのうちの2つ目 Specific remaining item
- セットの残り全部 Specific remaining group
- 単数・複数名詞 Singular/Plural Countable
- 不可算名詞 Uncountable
Another, Other, The Other の比較
診断：Another, Other, The Other どれを使う？
「もう一つ」または「別のもの（単数）」を指していますか？
一般的な意味で「追加の」または「別の」もの・人を指していますか？
「特定の2つ目」または「明確なグループの残り」を指していますか？
相性の良い名詞たち
Another (+ 単数)
- • cup
- • day
- • story
- • chance
Other (+ 複数)
- • books
- • friends
- • countries
- • methods
Other (+ 不可算)
- • information
- • advice
- • water
- • sugar
The Other (+ 全般)
- • car
- • half
- • students
- • side
レベル別の例文
I want another apple.
Do you have other colors?
Where is the other shoe?
I like this one and the other one.
Can I have another glass of water?
Some people like tea, others like coffee.
I have other things to do today.
The other students are in the classroom.
We need to find another way to solve this.
I've invited Sarah, but I haven't asked the others yet.
Are there any other questions before we finish?
One of my sisters is a nurse; the other is a pilot.
The project will take another three months to complete.
Some experts agree with the theory, while others remain skeptical.
I can't find my keys; they must be in the other bag.
She has other interests besides just playing the piano.
The results were other than what we had expected.
He visits his grandmother every other weekend.
The witness was none other than the victim's brother.
We must consider the 'other' in our sociological analysis.
To promise is one thing; to deliver is quite another.
The dichotomy between the self and the other is central to the text.
They had no other choice but to surrender.
One after another, the dominoes began to fall.
間違えやすい
Learners use 'additional' in casual speech where 'another' is more natural.
Learners often use 'different' when they mean 'another' or 'other'.
Mixing up general plural pronouns with specific ones.
よくある間違い
I want others apple.
I want another apple.
Give me other cup.
Give me another cup.
I have two pens. This is red, other is blue.
...the other is blue.
I like others books.
I like other books.
Some people are tall, other are short.
Some people are tall, others are short.
I need another books.
I need other books.
Where are the other?
Where are the others?
He stayed for another three day.
He stayed for another three days.
I don't have any others idea.
I don't have any other ideas.
The one is here, the others is there.
The one is here, the other is there.
Other than him, nobody know.
Other than him, nobody knows.
Every others day.
Every other day.
They have no other choice than...
They have no other choice but...
文型パターン
I don't like this ___, can I see another ___?
Some ___ like to ___, while others prefer to ___.
On the one hand ___, but on the other hand ___.
We need another ___ before we can ___.
Real World Usage
Could we get another bottle of water, please?
Do you have any other experience in marketing?
Customers who bought this also viewed these other items.
The pharmacy is on the other side of the square.
Some followers loved the video, but others found it boring.
We need another three days to finalize the report.
an + other と考えよう
an + other です。これさえ覚えておけば、常に単数で数えられる名詞に使うことが思い出せますよ。 "I'd like another apple."複数形には要注意
Other people might disagree.
文脈がカギを握る
the other や the others を使います。単に追加のものや別のものを指すなら another か other を選びましょう。 Where are the other keys?
自然に聞こえるコツ
another one や the other one をよく使います。 "I don't like this one, show me the other one."代名詞のパワー
-s をつけて others にします。単数なら another や the other one だけで使えます。 "Some like it, others don't."Smart Tips
Always use 'the other' for the second item. It makes you sound much more precise than saying 'another one'.
Drop the noun and add an 's' to 'other' to turn it into a pronoun.
Use 'another' + [number] + [plural noun] to treat the amount as a single block of time or cash.
Check if the noun is plural. If it's singular, you probably need 'another' or 'the other'.
発音
Linking R
In 'another' and 'other', the final 'r' is often silent in British English unless followed by a vowel.
The Voiced TH
The 'th' in all these words is voiced, like 'this' or 'mother'.
Emphasis on 'Another'
I want aNOTHer one.
Emphasizing that you want an additional item, perhaps because the first was good.
暗記しよう
記憶術
ANOTHER is just AN + OTHER. Since 'AN' is singular, 'ANOTHER' is singular.
視覚的連想
Imagine two boxes. If you want one more box from a pile, it's 'another'. If you have two boxes and point to the second one, it's 'the other'.
Rhyme
One is another, many are other. The last of the mother is the other.
Story
I bought a blue shirt, but I wanted another color. I looked at other shirts, but they were ugly. Finally, I found the other shirt I liked in the back of the store.
Word Web
チャレンジ
Look around your room. Find two similar objects. Describe one, then use 'the other' to describe the second one. Then find a group of objects and use 'other' and 'others' to describe them.
文化メモ
Using 'the others' to refer to people can sometimes sound exclusionary if not used carefully in social settings.
The phrase 'the other half' is a common, slightly informal way to refer to one's spouse or partner.
In academic writing, 'the other' is often used as a noun to describe groups marginalized by a dominant culture.
From Old English 'ōther', meaning 'second' or 'different'.
会話のきっかけ
If you could live in another country, which one would it be?
Some people love spicy food. Do you know others who hate it?
If you had to choose between living in the city or the countryside, which would you pick? Why not the other?
What other skills would you like to learn this year?
日記のテーマ
よくある間違い
Test Yourself
I've finished this book. Can you recommend ___?
Find and fix the mistake:
Some people like cats, other prefer dogs.
正しい文を選んでください：
英語に訳しましょう：『リンゴが2つあります。1つは赤で、もう1つは緑です。』
Answer starts with: ["I...
Arrange the words in the correct order:
All words placed
Click words above to build the sentence
Score: /5
練習問題
8 exercisesI don't like this hotel. Let's find ___ one.
Some people like to exercise in the morning, while ___ prefer the evening.
Find and fix the mistake:
I have two brothers. One is in London, and other is in Paris.
___ students
I need one more week to finish.
Do you have others colors?
A: Is this the only key? B: No, ___ is on the table.
The project will take ___ three months.
Score: /8
Practice Bank
12 exercisesShe ate one cookie and then asked for ___.
My phone is broken. I need buy other one.
正しい文を選んでください：
英語に訳しましょう：『私には手があります。1つは左で、もう1つは右です。』
これらの単語を並べ替えてください：
文を完成させてください：
I don't like this restaurant. Let's find ___ place.
There were three main points. I covered one, but other two are for next week.
正しい文はどれですか？
英語に訳しましょう：『アイデアが1つありますが、他にもありますか？』
これらの単語を並べ替えてください：
単語と正しい用法を組み合わせてください：
Score: /12
よくある質問 (8)
Only if there is a number or a word like 'few' in between. For example, `another three days` or `another few people` is correct because the group is seen as one unit.
`Other` is an adjective and must be followed by a noun (e.g., other books). `Others` is a pronoun and stands alone (e.g., I have others).
Use `another` for any one of many (indefinite). Use `the other` when there are only two, or when you mean the specific one that is left (definite).
Yes, `the others` is a plural pronoun referring to a specific group of remaining people or things.
Yes, you can say `other information` or `other advice`. You cannot use `another` with uncountable nouns.
Because `another` already contains the article 'an'. You wouldn't say 'the an other'.
No. `Every other day` means Monday, Wednesday, Friday (alternating). `All other days` means every day except the one mentioned.
It means 'except for' or 'besides'. For example: `I don't know anyone here other than you.`
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
otro / otra
Spanish speakers often say 'other book' when they mean 'another book' because they don't use 'an'.
un autre / d'autres
French uses 'd'autres' for indefinite plurals, which maps well to English 'other'.
ein anderer / andere
German adjectives like 'andere' must decline (change endings) based on case and gender.
hoka no / mou hitotsu
Japanese does not have a direct equivalent for the singular/plural grammatical distinction of 'another/other'.
akhar / ukhra
Arabic uses dual forms for 'the other' when referring to exactly two things.
ling yi ge / qi ta
Chinese relies on measure words (classifiers) rather than simple singular/plural determiners.
Learning Path
Prerequisites
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Another / Other / The other の使い分け
Hapa 英会話
【5分でわかる】another, other, the otherの違いと使い分け
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