Definitions

from The Century Dictionary.

  • noun One indeed; one of the best; a person possessing some unique characteristic, particularly some special skill, or indefatigable in some occupation or pursuit; a good hand; an adept or expert.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun informal An extraordinary individual.
  • noun A small marble of little worth in children's games.
  • noun UK A conker that has won one match.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

one +‎ -er

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Examples

Comments

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  • A big punch.

    Some boxing pundits describe Diaz as a fighter who is willing to take two punches to land a single oner. However, against Pacquiao, it was more like five or six punches to a single Diaz punch. And it's a known fact that Manny hits hard so even a two to one exchange may not have worked for Diaz.

    - Pinoy Boxing

    July 24, 2008