boundarynoun [ C ]
uk/ˈbaʊn.dər.i/us/ˈbaʊn.dər.i/C1 a real or imagined line that marks the edge or limit of something:
The Ural mountains mark the boundary between Europe and Asia.
Residents are opposed to the prison being built within the city boundary.
C1 the limit of a subject or principle:
Electronic publishing is blurring the boundaries between dictionaries and encyclopedias.
More examples
- The boundary of the car park is delineated by a low brick wall.
- This film blurs the boundary between reality and fantasy.
- They've been feuding with their neighbours for years over a boundary issue.
- A disagreement about boundaries is at the heart of the dispute.
- The bad language in that play overstepped the boundaries of what ought to be allowed on television.
Thesaurus: synonyms and related words
Territorial boundaries
- border
- bound
- checkpoint
- frontier
- no-man's-land
- state line
- the Iron Curtain
- the Mason-Dixon Line
You can also find related words, phrases, and synonyms in the topics:
Range and limits