saving vs economy

saving and economy both are nouns.

Word	Noun	Adjective	Verb	Adverb
saving	Yes	Yes	No	No
economy	Yes	No	No	No

As nouns, saving and economy are synonyms defined as:

saving (noun)	economy (noun)
an act of economizing; reduction in cost	an act of economizing; reduction in cost
the activity of protecting something from loss or danger	frugality in the expenditure of money or resources
recovery or preservation from loss or danger	the efficient use of resources
	the system of production and distribution and consumption

saving (adjective)	economy (adjective)
bringing about salvation or redemption from sin
characterized by thriftiness