Meaning ofboundaryin English

Noun

1. a dividing line between areas; separating zones
2. the limits of something intangible (comfort zone, privacy, etc.)
3. a marked edge of a playing field or territory
   The boundary of the soccer field is marked with white lines.
4. a line marking the edge of a playing field (cricket)
   The cricket pitch has a boundary that marks the edge of the playing field.
5. the outer limits of a set (in topology); dividing line
   In topology, the boundary of a set is the set of points that separates it from other sets.
6. the dividing line between two or more regions (physical or abstract)
   The geographical boundary between the two countries is formed by a river.