ENGLISH WORD FILE NO. 00783 · Core CSAT & TOEIC Vocabulary
boundary
n.
US/ˈbaʊnderi/
UK/ˈbaʊndəri/
CSAT Frequency75/100
TOEIC Frequency68/100
02
Meanings of boundary
1noun
A line or limit that marks the edge or extent of something, separating one area, jurisdiction, or concept from another.
The river forms a natural boundary between the two countries.
The river forms a natural boundary between the two countries.
She set clear boundaries in her relationship to protect her personal space.
She set clear boundaries in her relationship to protect her personal space.
03
Derivatives of boundary
boundary line
a line marking the limit or edge (noun)
The boundary line between the properties was established by a professional surveyor.
The boundary line between the properties was established by a professional surveyor.
push the boundary
to extend or challenge limits (verb phrase)
Modern artists often push the boundary between traditional and contemporary art.
Modern artists often push the boundary between traditional and contemporary art.
cross a boundary
to go beyond or violate a limit (verb phrase)
The refugee crossed the boundary illegally to escape the conflict.
The refugee crossed the boundary illegally to escape the conflict.
04
Synonyms & Antonyms of boundary
05
Common Phrases with boundary
set a boundaryset a boundary
cross the boundarycross the boundary
international boundaryinternational boundary
establish boundariesestablish boundaries
boundary disputeboundary dispute
06
Practice Question: boundary
Choose the best word for the blank
Setting healthy ___ is essential for maintaining good mental health and preventing burnout.
- A boundary
- B boundaries
- C boundarie
- D boundaryies
The plural form 'boundaries' is correct because the sentence refers to multiple limits or rules, and the context requires a countable noun in plural.