(adjective) having the same or coincident boundaries / (adjective) coextensive in scope or duration
Zionism and colonial expansion are historically coterminous
the touchstone of literature, which was less an academic subject than a spiritual exploration coterminous with the fate of civilization itself
As opposed to those of its global adversary, they contended, the interests of America were coterminous with the world’s interests.
Free software avoids a particular mechanism of injustice—but it’s not coterminous with all of ethics for computing.
As though simplicity, directness and 'clarity' in this sense were coterminous.