Sentence:  Rather touchingly, an <WSD>ecumenical</WSD> mass of reparation for the victims of the massacres was held on October 29, in the very English village of Great Missenden in Buckinghamshire. The service was led by the Catholic bishop of Northampton, with Archbishop Metropolitan Stres from Ljubljana and the Anglican bishop of Buckingham. 
Meaning of the word marked with <WSD> tags:  Pertaining to the universal Church, representing the entire Christian world; interdenominational; sometimes by extension, interreligious. (from 16th c.)