number one - definition in the Business English Dictionary - Cambridge Dictionaries Online

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English definition of “number one”

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number one

noun [U]
 
 
informal the person or thing that is the best or has the most important position in an organization, group, market, etc.: They ran an aggressive advertising campaign as part of their plan to become number one in the UK market. Sustainable success is our number one priority.
Translations of “number one”
in Chinese (Traditional) 自己…
in Chinese (Simplified) 自己…
(Definition of number one from the Cambridge Business English Dictionary © Cambridge University Press)
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