expenditure vs consumption

expenditure and consumption both are nouns.

Word	Noun	Adjective	Verb	Adverb
expenditure	Yes	No	No	No
consumption	Yes	No	No	No

As nouns, expenditure and consumption are synonyms defined as:

Other synonyms of expenditure include using up.

expenditure (noun)	consumption (noun)
the act of spending money for goods or services	the act of consuming something
the act of consuming something	the process of taking food into the body through the mouth (as by eating)
money paid out; an amount spent	(economics) the utilization of economic goods to satisfy needs or in manufacturing
	involving the lungs with progressive wasting of the body