oecumenism vs social movement

oecumenism and social movement both are nouns.

Word	Noun	Adjective	Verb	Adverb
oecumenism	Yes	No	No	No
social movement	Yes	No	No	No

As nouns, social movement is a hypernym of oecumenism; that is, social movement is a word with a broader meaning than oecumenism:

oecumenism: a movement promoting union between religions (especially between Christian churches)
social movement: a group of people with a common ideology who try together to achieve certain general goals

Other hypernyms of oecumenism include front, movement.

oecumenism (noun)	social movement (noun)
a movement promoting union between religions (especially between Christian churches)	a group of people with a common ideology who try together to achieve certain general goals