boundary
1. [ noun ] the line or plane indicating the limit or extent of something
Synonyms: bounds bound
Related terms: extremity surface edge boundary_line frontier outline end limit bourn heliopause district_line hairline Rubicon shoreline city_line county_line bound
2. [ noun ] a line determining the limits of an area
Synonyms: edge bound
Related terms: line periphery margin frontier rim brink thalweg lower_bound upper_bound bound
3. [ noun ] the greatest possible degree of something
Synonyms: limit bounds
Examples:

: "what he did was beyond the bounds of acceptable behavior" "to the limit of his ability"

Related terms: extent verge utmost knife-edge thermal_barrier specify
Similar spelling:   bounder
  bone-dry
  bone_dry