ones Meaning, Definition & Usage

1. noun the smallest whole number or a numeral representing this number
   ace; I; unity; one; 1; single.
   
   • he has the one but will need a two and three to go with it
   • they had lunch at one
2. noun a single person or thing
   one.
   
   • he is the best one
   • this is the one I ordered

WordNet