paper round vs paper route

paper round and paper route both are nouns.

Word	Noun	Adjective	Verb	Adverb
paper round	Yes	No	No	No
paper route	Yes	No	No	No

As nouns, paper round and paper route are synonyms defined as:

paper round and paper route: the route taken when delivering newspapers every day

paper round (noun)	paper route (noun)
the route taken when delivering newspapers every day	the job of delivering newspapers regularly
	the route taken when delivering newspapers every day