kludge vs aggregation

kludge and aggregation both are nouns.

Word	Noun	Adjective	Verb	Adverb
kludge	Yes	No	No	No
aggregation	Yes	No	No	No

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

kludge: a badly assembled collection of parts hastily assembled to serve some particular purpose
aggregation: several things grouped together or considered as a whole

Other hypernyms of kludge include accumulation, assemblage, collection.

kludge (noun)	aggregation (noun)
a badly assembled collection of parts hastily assembled to serve some particular purpose	the act of gathering something together
	several things grouped together or considered as a whole