Reading Theme:

Language:

Font Size:

📕 rednote ID(小红书号)：3881567312

One Meaning: Usage, Examples, and Common Mistakes (2 meaning)

Meaning 1：the number one (one)

one 🔊

/wʌn/

num., adj., pron.

The number 1, the first and smallest whole number.

One number 1 with red apple illustration

the number one 🔊

➕

/ðə ˈnʌmbər wʌn/

num., adj., pron.

The integer that represents a single unit; the first and smallest positive whole number.

📁 Category：School Education 🔖 Level：Beginner

📘 Details & Usage

📖 Root Explanation

Old English 'ān', from Proto-Germanic *ainaz, cognate with German 'eins'.

💡 Mnemonic

A single upright '1' stands alone, like a lonely pole. Think: 'One is the loneliest number'.

📖 Example

My little sister can now count from one to ten all by herself. 🔊 My younger sister is now able to count from one to ten by herself.

🔗 Collocations

one by one – Individually in sequence

one of a kind – Completely unique

one-time – Occurring only once

🔄 Synonyms

single (adj.) – Meaning only one

unit (n.) – An individual thing or person regarded as single and complete

first (adj.) – Coming before all others in time or order

🚫 Antonyms

zero (num.) – The cardinal number representing no quantity

multiple (adj.) – Many; having several parts

🌱 Derivatives

oneness (n.) – The state of being unified or whole

once (adv.) – One single time

only (adj./adv.) – Single or solitary; no more than

📖 Cultural Story

'One' derives from Proto-Indo-European *óynos, meaning 'single'. It is the root of words like 'alone' and 'none'. Historically, it has been central to counting systems worldwide.

Meaning 2：a single entity (one)

one 🔊

/wʌn/

num., adj., pron.

A single person or thing, not two or more. Used to emphasize being alone or unique.

One single yellow balloon on blue background

a single entity 🔊

➕

/ə ˈsɪŋɡl ˈentɪti/

num., adj., pron.

Referring to one person or thing, emphasizing its individuality or uniqueness.

📁 Category：Objects & Materials 🔖 Level：Beginner

📘 Details & Usage

📖 Example

Out of all the cookies on the plate, she chose the one with the chocolate chip on top. 🔊 From all the cookies on the plate, she selected the one that had a chocolate chip on top.

🔗 Collocations

the one and only – The unique or famous person or thing

one of – A member of a group

one another – Each other (used for reciprocal actions)

🔄 Synonyms

sole (adj.) – Being the only one

single (adj.) – Only one

unique (adj.) – Being the only one of its kind

🚫 Antonyms

multiple (adj.) – Many

several (adj.) – More than two but not many

🌱 Derivatives

alone (adj./adv.) – Having no one else present

lonely (adj.) – Sad because of being alone

oneness (n.) – The quality of being unified