When We Use Money to Buy Things, We're Doing This

This page is the CodyCross answer for the clue below from Spa Time, Group 819, Puzzle 1 (Turndown Service).

Question is: When We Use Money to Buy Things, We're Doing This

and the answer is: SPENDING

Word Meaning:

SPENDING — (uncountable) gerund of spend, expenditure.

Definitions from Wiktionary.