First Known Use: 1598
Dictionary
boundary
noun bound·ary \ˈbau̇n-d(ə-)rē\
: something (such as a river, a fence, or an imaginary line) that shows where an area ends and another area begins
: a point or limit that indicates where two things become different
boundaries : unofficial rules about what should not be done : limits that define acceptable behavior
plural bound·aries
Full Definition of BOUNDARY
: something that indicates or fixes a limit or extent
— bound·ary·less \-ləs\ adjective
— bound·ary·less·ness noun
See boundary defined for English-language learners
See boundary defined for kids
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Origin of BOUNDARY
2bound + 1-ary
Related to BOUNDARY
- Synonyms
- bound, limit, cap, ceiling, confines, end, extent, limitation, line, termination
Rhymes with BOUNDARY
BOUNDARIES Defined for Kids
boundary
noun bound·ary \ˈbau̇n-də-rē, ˈbau̇n-drē\
plural bound·aries
Definition of BOUNDARY for Kids
: something that points out or shows a limit or end : a dividing line
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