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boundary

bound·a·ry

boundary

 
 
pronunciation:
baUn d ri [or] baUn dri
part of speech: noun
inflections: boundaries
definition: something that marks the edge or limit.
The fence is the boundary of our neighbor's property.
synonyms:
border, edge, limit, line
similar words:
bound, brink, confine, enclosure, margin, perimeter, restriction, verge