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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.

"Sinners" debuted at number one at the box office, making $48 million domestically, the highest-grossing opening for an original film released so far this decade.

From

With 19 US number one singles, she is second only to The Beatles in terms of chart success.

From

"My number one worry is what is going to happen in the summer," said Prof Rein, when "there are fewer wildfires but they are bigger and they can actually be seriously catastrophic".

From

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

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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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