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

Beyond The Press Release The best founder conversations rarely stay within the boundaries of the product being launched. — Kate Hardcastle, Forbes.com, 17 July 2026

Which hasn’t entirely stopped Klaveness from speaking out as Infantino pushes the boundaries of his power. — Tom Kludt, Vanity Fair, 17 July 2026

The boundary-pushing roadster will be the last series-production vehicle to leave the marque’s Molsheim atelier with a W-16 in the engine bay. — Bryan Hood, Robb Report, 17 July 2026

The shaded areas of the map show the approximate boundaries where air quality is available and listed as anything other than good. — Sarah Moore, Freep.com, 17 July 2026