from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Having the same limits, boundaries, or scope.

from The Century Dictionary.

  • Having the same extension.
  • Occupying the same extent of space or duration of time.
  • In logic, having the same breadth, or logical extension.

from the GNU version of the Collaborative International Dictionary of English.

  • adjective Equally extensive; having equal extent.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective Having the same spatial limits or boundaries; sharing the same area.
  • adjective Occurring over the same period of time; contemporaneous.
  • adjective logic Having the same extension—the object or set of objects to which a term refers.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adjective being of equal extent or scope or duration


from Wiktionary, Creative Commons Attribution/Share-Alike License

From co- +‎ extensive.


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