garbage collection vs garbage pickup

garbage collection and garbage pickup both are nouns.

Word	Noun	Adjective	Verb	Adverb
garbage collection	Yes	No	No	No
garbage pickup	Yes	No	No	No

As nouns, garbage collection and garbage pickup are synonyms defined as:

garbage collection and garbage pickup: the collection and removal of garbage

Other synonyms of garbage collection include trash collection, trash pickup.

garbage collection (noun)	garbage pickup (noun)
the collection and removal of garbage	the collection and removal of garbage