1. having the same boundaries, scope, or extent; covering exactly the same area or range
Usage: formal

Examples

• The two properties are coextensive, sharing the exact same boundary lines.
• His authority is coextensive with the company’s operations in Asia.
• The terms ‘bachelor’ and ‘unmarried man’ are coextensive in meaning.
• The new law makes federal and state regulations coextensive in this area.
• The park’s boundaries are coextensive with the original land grant.
• Her responsibilities are coextensive with those of the department head.