oecumenical vs world-wide

oecumenical and world-wide both are adjectives.

Word	Noun	Adjective	Verb	Adverb
oecumenical	No	Yes	No	No
world-wide	No	Yes	No	No

As adjectives, oecumenical and world-wide are synonyms defined as:

Other synonyms of oecumenical include cosmopolitan, ecumenical, general, universal, worldwide.

oecumenical (adjective)	world-wide (adjective)
of worldwide scope or applicability	of worldwide scope or applicability
concerned with promoting unity among churches or religions	spanning or extending throughout the entire world
	involving the entire earth; not limited or provincial in scope