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ecumenicism

[ ek-yoo-men-uh-siz-uhm or, especially British, ee-kyoo- ]
/ ˌɛk yʊˈmɛn əˌsɪz əm or, especially British, ˌi kyʊ- /
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noun
ecumenicalism; ecumenism.
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Origin of ecumenicism

First recorded in 1960–65; ecumenic(al) + -ism
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
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