boundary

[boun-duh-ree, -dree] / ˈbaʊn də ri, -dri /

NOUN

outer limit

Synonyms

STRONGEST

barrier border borderline bounds confines edge frontier horizon line perimeter

STRONG

ambit beginning borderland brink circumference circumscription compass end environs extent extremity frame fringe hem limits march margin mark mere mete outline outpost pale periphery precinct purlieus radius rim side skirt terminal termination terminus verge

WEAK

abuttals line of demarcation

Antonyms

STRONGEST

center inside interior middle

STRONG

opening start

WEAK

minimum

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It was established for the 2024 general election and was created by boundary changes from parts of the former Dundee East and Angus constituencies.

From BBC • Jun. 11, 2026

That growing buildup has prompted calls for TFA to be considered a potential planetary boundary threat.

From Science Daily • Jun. 9, 2026

In Rhode Island, a case has been ongoing for three years over a law that moved the boundary of a public beach further inland.

From The Wall Street Journal • Jun. 9, 2026

My husband and I arrange to collect my grandparents Sue and Ed from their apartment just south of Sunset Boulevard, which marks the boundary of the current evacuation area.

From Los Angeles Times • Jun. 8, 2026

But I locked the door, like another boundary between us.

From "Merci Suárez Changes Gears" by Meg Medina

Vocabulary lists containing boundary

Human Geography - Middle School

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Human Geography - High School

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Political Geography - Middle School

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