aggregator vs collector

aggregator and collector both are nouns.

Word	Noun	Adjective	Verb	Adverb
aggregator	Yes	No	No	No
collector	Yes	No	No	No

As nouns, aggregator and collector are synonyms defined as:

aggregator (noun)	collector (noun)
a person who collects things	the electrode in a transistor through which a primary flow of carriers leaves the region between the electrodes
	a crater that has collected cosmic material hitting the earth
	a person who is employed to collect payments (as for rent or taxes)
	a person who collects things