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

1. Used of a single unit or thing; not two or more
   - 1, i, ane [UK, dialect]
    
2. Having the indivisible character of a unit
   "spoke with one voice";
   - unitary
    
3. Of the same kind or quality
   "two animals of one species"
    
4. [informal] Very; used informally as an intensifier
   "that is one fine dog";
   - right [informal]
    
5. Indefinite in time or position
   "he will come one day"; "one place or another"
    
6. Being a single entity made by combining separate components
   "three chemicals combining into one solution"
    
7. Eminent beyond or above comparison
   "she's one girl in a million"; "the one and only Muhammad Ali";
   - matchless, nonpareil, one and only, peerless, unmatched, unmatchable, unrivaled [US], unrivalled [Brit, Cdn]

1. A person in general
   "can one swim there?"
    
2. A specified thing
   "the one on top"

Sounds like: oiler, r, o

Derived forms: ones

See also: cardinal, combined, extraordinary, incomparable, indefinite, same, uncomparable, united

Type of: digit, figure, unit

Encyclopedia: One, Two, Three, Go!