Synonyms of boundary

boundary

noun

ˈbau̇n-d(ə-)rē 

1

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

• limit
• limitation
• confines
• line
• end
• extent
• barrier
• bound
• ceiling
• cap
• termination
• border
• edge
• fence
• margin
• terminus
• extremity
• wall
• rim
• outside
• verge
• fag end
• hedge
• restraint
• stop
• brim
• bar

2

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

• perimeter
• edge
• border
• confines
• circumference
• edging
• margin
• rim
• end
• periphery
• verge
• fringe
• frame
• bound
• skirt
• outskirts
• brim
• compass
• hem
• skirting
• borderline
• extent
• cusp
• demarcation
• lip
• limitation
• maximum
• restriction
• crest
• curb
• shore
• brink
• frontier
• ceiling
• mere
• termination
• ambit
• borderland
• measure
• march
• lap
• selvage
• pale

Antonyms & Near Antonyms

• center
• heart
• core
• within
• interior
• middle
• inside
• inner

Example Sentences

Recent Examples of boundary

But Orange County planning staff concluded Rybolt Lamar wasn’t allowed to redefine her property boundaries and recommended that county commissioners deny the application. — Nico Rivero, Miami Herald, 2 Oct. 2026

Folsom Cordova Unified School District’s boundaries cover the city of Folsom and much of northeastern Rancho Cordova, as well as Mather. — Camryn Dadey, Sacbee.com, 2 Oct. 2026

Because the next governance boundary may not be where the data moves. — Kelvin Cheema, Forbes.com, 2 Oct. 2026

The boundaries of the work became the maximum distance two people could occupy and still keep each other in view. — Jeffrey Weiss, Artforum, 1 Oct. 2026