number one

adjective

  • First; the best or most important.

noun

  • The most important person, the one who is in charge.
  • Someone who is top of a ranking, who is ranked first.
  • The main goalkeeper of a team, so-called because they wear the number 1 on the back of their kit.


Word Explanation:

  • Number one is the first number in counting. It can also mean the best, like when someone wins a race and they are number one!