congregation vs assembly

congregation and assembly both are nouns.

Word	Noun	Adjective	Verb	Adverb
congregation	Yes	No	No	No
assembly	Yes	No	No	No

As nouns, assembly is a hypernym of congregation; that is, assembly is a word with a broader meaning than congregation:

Other hypernyms of congregation include assemblage, gathering.

congregation (noun)	assembly (noun)
the act of congregating	the social act of assembling
a group of people who adhere to a common faith and habitually attend a given church	the act of constructing something (as a piece of machinery)
an assemblage of people or animals or things collected together	a group of machine parts that fit together to form a self-contained unit
	a public facility to meet for open discussion
	a unit consisting of components that have been fitted together
	a group of persons who are gathered together for a common purpose