BOUNDARY Synonyms: 65 Similar and Opposite Words

boundary

noun

ˈbau̇n-d(ə-)rē

Definition of boundary

as in limit

a real or imaginary point beyond which a person or thing cannot go parents have to set boundaries for their children, and the children want them to

Synonyms & Similar Words

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as in perimeter

the line or relatively narrow space that marks the outer limit of something that chalk line marks the boundary of our playing field

Synonyms & Similar Words

Antonyms & Near Antonyms

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of boundary For the observer hovering above one of these boundaries, Kuridze says, the view would depend on the time of arrival. — Jacek Krywko, ArsTechnica, 7 Aug. 2026 The judgment, where the boundaries go, which way the arrows point, what must stay changeable and what gets enforced rather than hoped, stays human. — Evan J. Schwartz, Forbes.com, 7 Aug. 2026 Choose the space, silence, or gentle boundary that helps your nervous system settle. — Tarot.com, New York Daily News, 6 Aug. 2026 Race still mattered, but the boundaries of political belonging became more flexible and expansive. — Eladio Bobadilla, Mercury News, 6 Aug. 2026 See All Example Sentences for boundary

Recent Examples of Synonyms for boundary

Noun

Lichtenstein recommends supporting style exploration while still identifying realistic limits and slowing down big choices through compromise and open communication about why your teen wants to switch up their look.

— Liz Regalia, Parents, 10 Aug. 2026
The team—engineers, policymakers, and operators—solves for that specific limit, and the boundary moves.

— John Werner, Forbes.com, 10 Aug. 2026

Definition of limit

Noun

The department shared photos and images showing the big cat on a sidewalk under the shade of a tree while deputies set up a perimeter.

— Ruben Vives, Los Angeles Times, 7 Aug. 2026
After choosing your traps from a local home improvement store, place them around your yard’s perimeter, especially near the nests.

— Michelle Mastro, Martha Stewart, 5 Aug. 2026

Definition of perimeter

Noun

The scientists used cutting-edge airborne laser scanning technology and found hundreds of previously unknown earthworks.

— Harriet Marsden, TheWeek, 10 Aug. 2026
The edges of your lawn and garden provide the perfect habitat for these plants, while fences and retaining walls can give support to growing poison ivy vines.

— Lauren Landers, Better Homes & Gardens, 10 Aug. 2026

Definition of edge

Noun

Still energy proved infectious, with the dugout jumping up and down while greeting him with a line of high-fives.

— Abbey Mastracco, New York Daily News, 6 Aug. 2026
Control or supervision over the chokepoint has become just as much a red line for Tehran as the right to nuclear enrichment.

— Todd Symons, CNN Money, 6 Aug. 2026

Definition of line

Noun

Four firefighters were killed and a fifth was injured after they were overcome by a fast-moving wildfire in Colorado, near the Utah border, in June.

— Los Angeles Times, Los Angeles Times, 8 Aug. 2026
The 27-member EU bloc has a visa-free travel area known as Schengen that allows citizens of most EU countries to travel easily across borders for work and pleasure.

— ABC News, ABC News, 8 Aug. 2026

Definition of border

Noun

Feed citrus with one-quarter pound of citrus fertilizer per inch of trunk circumference.

— Tom MacCubbin, The Orlando Sentinel, 1 Aug. 2026
Surgery eligibility is primarily driven by BMI; however, there is a movement to consider waist circumference because of the associated risks, according to Serlie.

— Crystal Gwizdala, Hartford Courant, 1 Aug. 2026

Definition of circumference

Noun

Contrast details like this blue velvet piping (Peacock from Pepper Home) outline the silhouette and emphasize the headboard's shape, while fringe, brush trim, scalloped edging, or decorative tape add an extra layer of personality.

— Lauren Bengtson, Better Homes & Gardens, 8 Aug. 2026
An old toothbrush can help reach between the balusters or spindles and decorative edging on posts and caps.

— Karen Brewer Grossman, Southern Living, 18 July 2026

Definition of edging

Browse Nearby Words

boundaries

boundary

bounded

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Style

“Boundary.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/boundary. Accessed 11 Aug. 2026.

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Synonyms of boundary

noun

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