trash pickup vs garbage collection

trash pickup and garbage collection both are nouns.

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

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

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

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

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