Definitions
There are 3 meanings of the phrase
Number One.
Number One - as a noun
A reference to yourself or myself etc.; `take care of number one' means to put your own interests first
The first or highest in an ordering or series
Example: "He wanted to be the first"
Synonyms (Exact Relations)
Hypernyms (Closely Related)
Hyponyms (Broadly Related)
Example Sentences
"She is the number one player on the team."
"This car is the number one choice for families."
"He is the number one contender for the championship."
"The number one priority is to ensure everyone's safety."
"She has been voted as the number one actress of the year."