coextensive

Meanings

1. 1
   adj

   Having the same spatial limits or boundaries; sharing the same area.

   The city and county of San Francisco are coextensive.

2. 2
   adj

   Occurring over the same period of time; contemporaneous.

   His life is almost co-extensive with one of the most disastrous periods in Roman history.

3. 3
   adj

   Having the same extension—the object or set of objects to which a term refers.

   Coextensive expressions with different intensions cannot in general be substituted for one another within an expression e while preserving the extension of e (assuming that the extension of a declarative sentence is its truth value).

4. 4
   adj

   being of equal extent or scope or duration

From co- + extensive.

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