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

Keep scrolling for more

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?
See More

Recent Examples on the Web

Ari continues to push the limits, break down boundaries, and give us reason after reason to stan her till the end of time. Gianluca Russo, Teen Vogue, "Ariana Grande's 'Cloud' Wins Fragrance of the Year Award," 6 June 2019 After boot camp, dogs will test the boundaries at home. Marni Jameson, orlandosentinel.com, "Animal House — part 2: Basic training can make unruly dogs fit for home life," 6 June 2019 By 1993, the Utes had become known for pushing the visual boundary of its media guides, which were distributed at home meets. Dvorameyers, Longreads, "The Gymnast’s Position," 5 June 2019 Vuong is pushing the boundaries of the novel form, reshaping the definition to fit the contours of his restless poetic exploration, using language to capture consciousness and being. Barbara Vandenburgh, USA TODAY, "Ocean Vuong's 'On Earth We're Briefly Gorgeous' a transcendent queer immigrant story," 5 June 2019 Nationwide, Democratic politicians are testing the boundaries of extremism on issues related to reproduction, while a few liberal voices warn of potential repercussions in the 2020 elections. James Freeman, WSJ, "Democrats vs. Nuns," 4 June 2019 After boot camp, dogs will test the boundaries at home. Marni Jameson, The Mercury News, "A home gone to the dogs," 4 June 2019 But Wu wasn't the only person to express her happiness over how the film turned out—particularly with respect to its ability to break boundaries in the Hollywood inclusion arena. Jennifer Lance, Glamour, "Crazy Rich Asians Is Officially Opening-Weekend Box Office Gold," 19 Aug. 2018 The show features new works by artists breaking boundaries in these relatively new digital mediums. Esme Bella Rice, WIRED, "These Artists Use AR to Pull You Inside Their Heads," 9 June 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.

See More

First Known Use of boundary

1598, in the meaning defined above

History and Etymology for boundary

bound entry 2 + -ary entry 1

Keep scrolling for more

Learn More about boundary

Statistics for boundary

Last Updated

13 Jun 2019

Look-up Popularity

Time Traveler for boundary

The first known use of boundary was in 1598

See more words from the same year

Keep scrolling for more

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

Keep scrolling for more

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

What made you want to look up boundary? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

incapable of being surmounted or overcome

Get Word of the Day daily email!

Test Your Vocabulary

Finance Words Quiz

  • a-piggy-bank
  • The etymology of mortgage is related most closely to which two words?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!