number one
adjective/ˌnʌmbə ˈwʌn/
/ˌnʌmbər ˈwʌn/
(informal) [only before noun]- most important or best
- the world’s number one athlete
- the number one priority
- I just love your work! I’m your number one fan.
- Our number one priority is to find larger office space.
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number one