The conference on œcumenism brought together clergy from many denominations to discuss common social initiatives.

Scholars of ancient geography debated the boundaries of the œcumene for decades.

The œcumenical council sought to reconcile doctrinal differences between the churches.

The council's œcumenic spirit fostered rare cooperation among the faiths.

Although now considered archaic, the word œcumenicity once captured the ideal of unity among diverse Christian traditions.

The historian argued that the phrase 'œcumenical council' had been used inconsistently in medieval chronicles.

Historians continue to debate the decisions made by the œcumenical councils and their long-term impact on doctrine.