number one
noun(number one)
one's own interests or welfare : oneself —often written No. 1
number one
noun(number one)
one that is first in rank, importance, or influence —often written No. 1
number one
adjective(number one)
first in rank, importance, or influence : foremost —often written No. 1
number one
adjective(number one)
of highest or of high quality
number one
idiom(number one)
to think primarily about oneself and do what helps one most
number one
noun(number one)
the person or thing that is chosen ahead of all others
number one
noun(number one)
the nation's most wanted criminal : the most dangerous threat to society