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View synonyms for

number one

noun

  1. oneself, especially one's own well-being or interests:

    to look out for number one.

  2. a person, company, etc., that is first in rank, order, or prestige:

    Our team is number one.

  3. urination: used especially by or with reference to children.


adjective

  1. of the highest in quality, status, importance, etc.; first-rate:

    a number one performance.

  2. first in rank, order, or prestige:

    the number one book on the bestseller list.

number one

noun

  1. the first in a series or sequence
  2. an informal phrase for oneself myself

    to look after number one

  3. informal.
    the most important person; leader, chief

    he's number one in the organization

  4. informal.
    the bestselling pop record in any one week
  5. euphemistic.
    the act or an instance of urination
  6. a haircut in which the hair is cut very close to the head with an electric shaver
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adjective

  1. first in importance, urgency, quality, etc

    number one priority

  2. informal.
    (of a pop record) having reached the top of the charts
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word History and Origins

Origin of number one1

First recorded in 1830–40
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Idioms and Phrases

Idioms
  1. 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.

Those number one albums both fell out of the Top 30 after one week, a sign of a strong core fanbase, with limited crossover appeal.

From

Newcastle will prioritise a new central defender this summer having missed out on number one target, Crystal Palace captain Marc Guehi, last year and could attract Huijsen, particularly if they qualify for the Champions League.

From

Young has three nominations including best song musically and lyrically for her breakthrough hit Messy, which spent a month at number one in the UK earlier this year.

From

Murphy, 42, is aiming to win a second world title 20 years after his first success but could face world number one Judd Trump in the next round.

From

Earlier this month, she beat British number one Katie Boulter in the Billie Jean King Cup tie that Raducanu missed to "rest" her body after a packed start to the season.

From

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Related Words

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.

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