Meaning & Definition of word "Boundary"

Boundary

/ˈbaʊndəri/

noun:

  • 1. A line or boundary marking the limits of an area; a dividing line.
    • Example: The river serves as the natural boundary between the two countries.
  • 2. A limit of a subject or sphere of activity; a defining line.
    • Example: Setting clear boundaries in a relationship is essential for healthy communication.
  • 3. An edge or limit; a point beyond which something does not or may not extend.
    • Example: The researchers tested the boundaries of the theory with new evidence.
  • 4. A conceptual limit; constraints on behavior or action.
    • Example: In art, the boundary between creativity and madness can often be blurred.

Etymology

Late Middle English: from Old French ‘bonderie’, from the verb ‘bondir’ meaning ‘to surround’.

Common Phrases and Expressions

set boundaries:

to establish limits in a situation or relationship.

push the boundaries:

to exceed or extend the limits of something.

cross the boundary:

to go beyond the accepted limits.

Related Words

border:

A line separating two political or geographical areas.

limit:

The point or level beyond which something does not or may not extend.

periphery:

The outer limits or edge of an area or object.

Slang Meanings of boundary

Meaning: No man's land

Example Sentence: The area between the two rival gangs was considered no man's land.

Meaning: The edge

Example Sentence: He was living on the edge when he decided to quit his job without a backup plan.