sum vs conglomeration

sum and conglomeration both are nouns.

Word	Noun	Adjective	Verb	Adverb
sum	Yes	No	Yes	No
conglomeration	Yes	No	No	No

As nouns, conglomeration is a hyponym of sum; that is, conglomeration is a word with a more specific, narrower meaning than sum:

Other hyponyms of sum include aggregate, congeries.

sum (noun)	conglomeration (noun)
the whole amount	an occurrence combining miscellaneous things into a (more or less) rounded mass
the choicest or most essential or most vital part of some idea or experience	a sum total of many heterogenous things taken together
a quantity obtained by the addition of a group of numbers	a rounded spherical form
the final aggregate
a set containing all and only the members of two or more given sets
a quantity of money

sum (verb)	conglomeration (verb)
determine the sum of
be a summary of