boundary

noun
bound·​ary | \ ˈbau̇n-d(ə-)rē How to pronounce boundary (audio) \
plural boundaries

Definition of boundary

: something that indicates or fixes a limit or extent Those two trees mark the boundary of our property. the mountain range that forms the country's northern boundary

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Other Words from boundary

boundaryless \ ˈbau̇n-​d(ə-​)rē-​ləs How to pronounce boundaryless (audio) \ adjective
boundarylessness noun

Examples of boundary in a Sentence

Those two trees mark the boundary of our property. The river forms the country's western boundary. at the boundary between fact and fiction You need to set boundaries with your children. Did he violate the boundaries of the doctor-patient relationship?
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Recent Examples on the Web

These disturbances can be in the form of boundaries that are less than perfectly smooth, variations in the pressure driving the flow, etc. Lee Phillips, Ars Technica, "Turbulence, the oldest unsolved problem in physics," 10 Oct. 2018 Now, with all eyes on her, there's no better time to walk through Thompson's impressive Hollywood transformation, from a fresh-faced actress to a bold boundary-breaking star. Samantha Sasso, refinery29.com, "Tessa Thompson's Beauty Evolution Is One For The Books," 4 July 2018 The annual pilgrimage to Indio, California is always a gold mine for good music, boundary-pushing fashion, and cool hairstyles. Glamour, "37 Festival Hairstyles That Don't Require a Flower Crown," 14 Apr. 2019 Voyager 2 approaches heliopause, the boundary at which the solar winds balance the winds of other planets’ stars—the edge of interstellar space . . Popular Mechanics Editors, Popular Mechanics, "The Tourist's Guide to Space," 12 Mar. 2019 Lady Gaga is undoubtedly a fashion innovator and boundary-pushing artist whose proclivity for rocking bold and cutting-edge clothing has cemented her place in the fashion industry as a genuine style star. Nicole Saunders, Harper's BAZAAR, "Lady Gaga Looked Ravishing in a Sequined Naked Dress on Jimmy Kimmel Live!," 28 Feb. 2019 The limitless 360-degree view of Manhattan offered the perfect backdrop for the evening's empowering panel conversations, dedicated to pushing the boundaries of gender equality in the workplace. Eliseé Browchuk, Vogue, "Dior Celebrates the Newest Members of Its Women@Dior Program," 16 Mar. 2019 Earlier this month, Ars reviewed the June Oven, an Internet-connected, seven-in-one device that pushes the boundaries of the traditional toaster oven. Megan Geuss, Ars Technica, "June postscript: 5 unusual things you can make in an Internet-connected oven," 31 Dec. 2018 With an evening filled with so much jaw-dropping glamour that most certainly pushes the boundaries of red carpet style, though, a malfunction here and there is bound to be in the cards. Avery Matera, Teen Vogue, "VMAs 2018: Celebrity Wardrobe Mishaps You May Have Missed," 22 Aug. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'boundary.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of boundary

1598, in the meaning defined above

History and Etymology for boundary

bound entry 2 + -ary entry 1

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Statistics for boundary

Last Updated

16 May 2019

Look-up Popularity

Time Traveler for boundary

The first known use of boundary was in 1598

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More Definitions for boundary

boundary

noun

English Language Learners Definition of boundary

: something (such as a river, a fence, or an imaginary line) that shows where an area ends and another area begins
: a point or limit that indicates where two things become different
: unofficial rules about what should not be done : limits that define acceptable behavior

boundary

noun
bound·​ary | \ ˈbau̇n-də-rē How to pronounce boundary (audio) , ˈbau̇n-drē\
plural boundaries

Kids Definition of boundary

: something that points out or shows a limit or end : a dividing line

boundary

noun
bound·​ary
plural boundaries

Legal Definition of boundary

: a theoretical line that marks the limit of an area of land

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More from Merriam-Webster on boundary

Rhyming Dictionary: Words that rhyme with boundary

Thesaurus: All synonyms and antonyms for boundary

Spanish Central: Translation of boundary

Nglish: Translation of boundary for Spanish Speakers

Britannica English: Translation of boundary for Arabic Speakers

Comments on boundary

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