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Thesaurus

Noun

1.1 - 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"ace, one, single, unity, Idigit, figure - one of the elements that collectively form a system of numeration; "0 and 1 are digits"monas, monad - a singular metaphysical entity from which material properties are said to derivesingleton - a single object (as distinguished from a pair)

Adj.

1.1 - used of a single unit or thing; not two or more; "`ane' is Scottish"ane, i, onecardinal - being or denoting a numerical quantity but not order; "cardinal numbers"