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Definition of "pinnacle" []

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

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "pinnacle" in a sentence
  • "In the new theology this celestial pinnacle is occupied by The Market, which I capitalize to signify both the mystery that enshrouds it and the reverence it inspires in business folk."
  • "The word pinnacle does not quite express the force of the original."
  • "Formula 1 is often referred to as the pinnacle of motorsport, and this year's championship is 19 races long, starting with Australia back in March and finishing in Brazil at the end of November."