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Definition of "boundary" []

  • Something that indicates a border or limit. (noun)
  • The border or limit so indicated. (noun)
  • Something that indicates the farthest limit, as of an area; border (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.

  • The marked limit of the playing area (noun)
  • A stroke that hits the ball beyond this limit (noun)
  • The four runs scored with such a stroke, or the six runs if the ball crosses the boundary without touching the ground (noun)

www.Collinsdictionary.com (c) HarperCollins Publishers Ltd 2016

Use "boundary" in a sentence
  • "Here's a quick review: To create a multipart message, use the Content-type of multipart/alternative and a boundary that contains unique alphanumeric text to designate the HTML and text portions of the e-mail. $boundary = "= = MP_Bound_xyccr948x = ="; $headers ="
  • "The term boundary fence -- not a wall, people can hide behind walls -- was a misnomer."
  • "The term boundary fence — not a wall, people can hide behind walls — was a misnomer."