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

Having the same extension.

Occupying the same extent of space or duration of time.

In logic, having the same breadth, or logical extension.

adjective. Equally extensive; having equal extent.

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

adjective. Occurring over the same period of time; contemporaneous.

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

adjective. being of equal extent or scope or duration

"If so, then reports of what a compass indicates exhibit one of Chisholm's features of intensionality, namely coextensive terms are not freely substituable salva veritate in such reports."

contemporaneous  

commensurate  

coterminous  extensive  

bloggy  bluish-green  coeternal  dose­response  einsteinian  

aligned  analogous  coequal  coequal  coextending