missionary station vs NGO

missionary station and NGO both are nouns.

Word	Noun	Adjective	Verb	Adverb
missionary station	Yes	No	No	No
NGO	Yes	No	No	No

As nouns, NGO is a hypernym of missionary station; that is, NGO is a word with a broader meaning than missionary station:

missionary station: an organization of missionaries in a foreign land sent to carry on religious work
NGO: an organization that is not part of the local or state or federal government

Other hypernyms of missionary station include nongovernmental organization.

missionary station (noun)	NGO (noun)
an organization of missionaries in a foreign land sent to carry on religious work	an organization that is not part of the local or state or federal government