1. relating to or representing the whole Christian church or all Christian churches
Usage: Also spelled 'ecumenical' (more common modern spelling); formal, religious context
2. promoting unity among different Christian denominations or religions
Usage: Also spelled 'ecumenical'; formal, religious context

Examples

• The oecumenical council brought together bishops from many different Christian traditions.
• The church promotes oecumenical dialogue between Catholics and Protestants.
• Oecumenical movements seek to unite Christians across denominational lines.
• The oecumenical spirit encourages cooperation among all faiths.
• Many oecumenical organizations work toward greater religious understanding.