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Definition of "peak" []

  • A tapering, projecting point; a pointed extremity: the peak of a cap; the peak of a roof. (noun)
  • The pointed summit of a mountain. (noun)
  • The mountain itself. (noun)
  • The point of a beard. (noun)
  • A widow's peak. (noun)

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 "peak" in a sentence
  • "We must do the same thing for the term peak oil, but it will be more challenging."
  • "Every major Cascade (and Sierra) Mountain peak is an active but dormant volcano."
  • "The term "peak" is typically used to describe maximum achievable download speeds in ideal conditions."