Ecumenism (noun)

1. A movement or attitude favoring cooperation and better understanding among different religious denominations, especially among Christians.
2. A striving for worldwide Christian unity.

Origin:

Early 20th century: from greek oikoumene 'the inhabited world' + -ism.

Examples:

1. The priest was a strong advocate of ecumenism and worked towards bringing together different Christian denominations.
2. The ecumenical council aimed to promote unity among Christians and address theological differences.
3. The ecumenical spirit was evident in the way different Christian communities worked together for social justice.
4. Ecumenism has led to greater cooperation and mutual understanding between different Christian traditions.
5. The ecumenical movement has made significant progress in recent decades, bringing together Christians of different backgrounds and beliefs.