noun
- An undivided or unbroken completeness or totality with nothing wanting.
- usage: "the integrity of the nervous system is required for normal development"; "he took measures to insure the territorial unity of Croatia"
- The smallest whole number or a numeral representing this number.
- usage: "he has the one but will need a two and three to go with it"; "they had lunch at one"
- The quality of being united into one.
- synonyms: oneness