outlay vs spending

outlay and spending both are nouns.

Word	Noun	Adjective	Verb	Adverb
outlay	Yes	No	No	No
spending	Yes	No	No	No

As nouns, outlay and spending are synonyms defined as:

Other synonyms of outlay include disbursal, disbursement.

As nouns, outlay and spending are synonyms defined as:

Other synonyms of outlay include expenditure, outgo.

outlay (noun)	spending (noun)
the act of spending or disbursing money	the act of spending or disbursing money
money paid out; an amount spent	money paid out; an amount spent