one

Meanings

• 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"
• a single person or thing
  • "he is the best one"
  • "this is the one I ordered"
• used of a single unit or thing; not two or more
• having the indivisible character of a unit
  • "spoke with one voice"
• of the same kind or quality
  • "two animals of one species"
• used informally as an intensifier
  • "that is one fine dog"
• indefinite in time or position
  • "he will come one day"
  • "one place or another"
• being a single entity made by combining separate components
  • "three chemicals combining into one solution"
• eminent beyond or above comparison
  • "she's one girl in a million"
  • "the one and only Muhammad Ali"

Synonyms

1, ace, ane, i, I, matchless, nonpareil, one and only, peerless, single, unitary, unity, unmatchable, unmatched, unrivaled, unrivalled