from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Architecture A small turret or spire on a roof or buttress.
  • n. A tall pointed formation, such as a mountain peak.
  • n. The highest point; the culmination. See Synonyms at summit.
  • transitive v. To furnish with a pinnacle.
  • transitive v. To place on or as if on a pinnacle.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The highest point.
  • n. A tall, sharp and craggy rock or mountain.
  • n. An all-time high; a point of greatest achievement or success.
  • v. to put something on a pinnacle
  • v. to build or furnish with a pinnacle or pinnacles

from the GNU version of the Collaborative International Dictionary of English

  • n. An architectural member, upright, and generally ending in a small spire, -- used to finish a buttress, to constitute a part in a proportion, as where pinnacles flank a gable or spire, and the like. Pinnacles may be considered primarily as added weight, where it is necessary to resist the thrust of an arch, etc.
  • n. Anything resembling a pinnacle; a lofty peak; a pointed summit.
  • transitive v. To build or furnish with a pinnacle or pinnacles.

from The Century Dictionary and Cyclopedia

  • To put a pinnacle or pinnacles on; furnish with a pinnacle or pinnacles.
  • To place on or as on a pinnacle.
  • n. A sharp point or peak; the very topmost point, as of a mountain.
  • n. In architecture, any relatively small structure (of whatever form, but commonly terminating in a cone or a pyramid) that rises above the roof or coping of a building, or caps a projecting architectural member, such as a buttress.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the highest level or degree attainable; the highest stage of development
  • n. (architecture) a slender upright spire at the top of a buttress of tower
  • n. a lofty peak
  • v. raise on or as if on a pinnacle
  • v. surmount with a pinnacle


from The American Heritage® Dictionary of the English Language, 4th Edition

Middle English, from Old French, from Late Latin pinnāculum, diminutive of Latin pinna, feather.

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Middle English, from Old French pinacle, pinnacle, from Late Latin pinnaculum ("a peak, pinnacle"), double diminutive of Latin pinna ("a pinnacle"); see pin.


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  • "The Unseen Essential" Author:James P. Gills,M.D. pg.73

    Fighting and elbowing our way to the pinnacle of our respective pile.

    November 1, 2010