amalgamation vs consolidation

amalgamation and consolidation both are nouns.

Word	Noun	Adjective	Verb	Adverb
amalgamation	Yes	No	No	No
consolidation	Yes	No	No	No

As nouns, consolidation is a hypernym of amalgamation; that is, consolidation is a word with a broader meaning than amalgamation:

Other hypernyms of amalgamation include integration.

amalgamation (noun)	consolidation (noun)
the combination of two or more commercial companies	the act of combining into an integral whole
	combining into a solid mass
	something that has consolidated into a compact mass