number one
Americannoun
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oneself, especially one's own well-being or interests.
to look out for number one.
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a person, company, etc., that is first in rank, order, or prestige.
Our team is number one.
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urination: used especially by or with reference to children.
adjective
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of the highest in quality, status, importance, etc.; first-rate.
a number one performance.
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first in rank, order, or prestige.
the number one book on the bestseller list.
idioms
noun
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the first in a series or sequence
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an informal phrase for oneself myself
to look after number one
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informal the most important person; leader, chief
he's number one in the organization
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informal the bestselling pop record in any one week
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euphemistic the act or an instance of urination
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a haircut in which the hair is cut very close to the head with an electric shaver
adjective
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first in importance, urgency, quality, etc
number one priority
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informal (of a pop record) having reached the top of the charts
Etymology
Origin of number one
First recorded in 1830–40
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
World number one Scottie Scheffler made a flying finish with his 65 seeing him recover from his bad start on Thursday to finish in joint 12th.
From BBC
Debuting in third place with $8 million was Lionsgate's "I Can Only Imagine 2," a sequel about the singer who wrote and performed the number one Christian single of all time.
From Barron's
"We are number one because we have a soul and not just money, and our guys at the front prove it every day," he said in a recent show.
From Barron's
As well as being number one on YouTube, Eminem was more popular on Spotify in the Welsh capital than in any other city, in ninth.
From BBC
Yet the game could mirror the 2021 win over England, which sparked Ireland's first rejuvenation under Farrell before they reached world number one in 2023.
From BBC
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
