expenditure vs expending

expenditure and expending both are nouns.

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

As nouns, expenditure and expending are synonyms defined as:

expenditure and expending: the act of spending money for goods or services

expenditure (noun)	expending (noun)
the act of spending money for goods or services	the act of spending money for goods or services
the act of consuming something
money paid out; an amount spent