number one
noun/ˌnʌmbə ˈwʌn/
/ˌnʌmbər ˈwʌn/
(informal)- [uncountable] the most important or best person or thing
- We're number one in the used car business.
- [uncountable, countable] the pop song or recording that has sold the most copies/had the most downloads in a particular week
- The new album went straight to number one.
- She's had three number ones.
- [uncountable] yourself
- Looking after number one is all she thinks about.
- [singular] (informal) an expression used especially by children or when speaking to children to talk about passing liquid waste from the body
- It's only a number one.
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number one