Oxford Dictionary English subtraction noun noun BrE BrE//səbˈtrækʃn// ; NAmE NAmE//səbˈtrækʃn// [uncountable, countable] Add to my wordlistjump to other resultsthe process of taking a number or amount away from another number or amount The children are tested on basic addition and subtraction. compare addition (1)Check pronunciation: subtraction oxfordlearnersdictionaries.com
