Synonyms of boundary
- 1. boundary, bound, bounds, extremity
- usage: the line or plane indicating the limit or extent of something
- 2. boundary, edge, bound, line
- usage: a line determining the limits of an area
- 3. limit, bound, boundary, extent
- usage: the greatest possible degree of something; "what he did was beyond the bounds of acceptable behavior"; "to the limit of his ability"
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Definition and meaning of boundary (Dictionary)