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/wʌn/
Meaning & Definition
numeral
The first number in the sequence of natural numbers, denoting a single unit.
I have one apple in my bag.
Used to refer to a single person or thing of a particular group.
She is the one I was talking about.
Indicating the same thing or person as previously mentioned.
The winner was the one who finished the race first.
pronoun
A person or thing previously mentioned or easily identified.
If anyone needs help, one can ask me at any time.
Etymology
Old English 'ān', from Proto-Germanic '*ainaz', meaning 'one' or 'single'.
Common Phrases and Expressions
one in a million:
Someone or something that is very rare or unique.
one of a kind:
Something that is unique and cannot be found anywhere else.
one step at a time:
To proceed slowly and carefully.
one and done:
To complete something in a single attempt.
the one:
A romantic partner who feels uniquely compatible.
Related Words
Slang Meanings
A person with exceptional qualities.
He's the one in charge.
Used to refer to one's romantic partner.
I think she's the one for me.