number one


Definition: Meaning of, number one in English to English dictionary.

Pronunciation: / ˈnʌmbə wʌn /

  • noun
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Word Forms:
Singular Plural
number one number ones
  1. [uncountable] the best, most important, or most successful person or thing in a group
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  2. [uncountable and countable] the musical record that is the most popular at a particular time
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  3. look out for number one also look after number one spoken to look after yourself and not worry about other people, in a way that may seem SELFISH
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  4. [singular, uncountable] spoken informal a word meaning URINE, used especially with children to avoid saying this
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  • adjective
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Word Forms:
Positive Comparative Superlative
N/A N/A N/A
  1. most important or successful in a particular situation
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  2. first on a list of several things to be considered, done etc
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number one used in phrases

  • number one wood (noun)
    1. a wood a golf club with a near vertical face that is used for hitting long shots from the tee
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