boundary

bound·ary

noun \ˈbau̇n-d(ə-)rē\

plural bound·aries

Definition of BOUNDARY

: something that indicates or fixes a limit or extent

— bound·ary·less \-ləs\ adjective

— bound·ary·less·ness noun

Examples of BOUNDARY

1. Those two trees mark the boundary of our property.
2. The river forms the country's western boundary.
3. at the boundary between fact and fiction
4. You need to set boundaries with your children.
5. Did he violate the boundaries of the doctor-patient relationship?

Origin of BOUNDARY

²bound + ¹-ary

First Known Use: 1598

Related to BOUNDARY

Synonyms: bound, limit, cap, ceiling, confines, end, extent, limitation, line, termination

Related Words: extremity, fag end, terminus; border, brim, edge, margin, rim, verge; outside; bar, barrier, fence, hedge, restraint, stop, wall

Near Antonyms: center, core, heart; inner, inside, interior, middle, within

see all synonyms and antonyms

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Rhymes with BOUNDARY

foundry