tout ensemble vs aggregation

tout ensemble and aggregation both are nouns.

Word	Noun	Adjective	Verb	Adverb
tout ensemble	Yes	No	No	Yes
aggregation	Yes	No	No	No

As nouns, aggregation is a hypernym of tout ensemble; that is, aggregation is a word with a broader meaning than tout ensemble:

tout ensemble: an assemblage of parts or details (as in a work of art) considered as forming a whole
aggregation: several things grouped together or considered as a whole

Other hypernyms of tout ensemble include accumulation, assemblage, collection.

tout ensemble (noun)	aggregation (noun)
a total impression or effect of something made up of individual parts	the act of gathering something together
an assemblage of parts or details (as in a work of art) considered as forming a whole	several things grouped together or considered as a whole

tout ensemble (adverb)	aggregation (adverb)
with everything considered (and neglecting details)