NUMBER ONE Definition & Meaning

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number one

noun

oneself, especially one's own well-being or interests:
to look out for number one.
a person, company, etc., that is first in rank, order, or prestige:
Our team is number one.
urination: used especially by or with reference to children.

adjective

of the highest in quality, status, importance, etc.; first-rate:
a number one performance.
first in rank, order, or prestige:
the number one book on the bestseller list.

number one

noun

the first in a series or sequence
an informal phrase for oneself myself
to look after number one
informal.
the most important person; leader, chief
he's number one in the organization
informal.
the bestselling pop record in any one week
euphemistic.
the act or an instance of urination
a haircut in which the hair is cut very close to the head with an electric shaver

adjective

first in importance, urgency, quality, etc
number one priority
informal.
(of a pop record) having reached the top of the charts

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51�Թ� History and Origins

Origin of number one¹

First recorded in 1830–40

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Idioms and Phrases

make / do / go number one, Informal. to urinate: used especially by or with reference to children.

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Example Sentences

Examples have not been reviewed.

A solitary point in the final end proved decisive for world number one Bruce Mouat's rink, who beat Sweden and Canada to reach the gold medal match after a topsy-turvy round-robin stage.

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It became the band's 18th UK number one single, over five decades from their last, and won a Grammy.

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Featuring signature songs like Tiny Dancer, I'm Still Standing and Rocket Man, the 51-track collection has gave the star his ninth number one album.

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Despite debuting at number one, it left the Top 40 after two weeks, and has yet to be certified gold - meaning it has sold fewer than 100,000 copies.

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She said the "toxicity" of Prince Harry's brand was the "number one risk for this organisation".

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

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