congress vs assemblage

congress and assemblage both are nouns.

Word	Noun	Adjective	Verb	Adverb
congress	Yes	No	No	No
assemblage	Yes	No	No	No

As nouns, assemblage is a hypernym of congress; that is, assemblage is a word with a broader meaning than congress:

Other hypernyms of congress include assembly, gathering.

congress (noun)	assemblage (noun)
the social act of assembling for some common purpose	the social act of assembling
a meeting of elected or appointed representatives	a system of components assembled together for a particular purpose
a national legislative assembly	a group of persons together in one place
	several things grouped together or considered as a whole