To use money, resources, or energy in a careful, efficient way to avoid waste; to spend less.
From French 'économiser,' derived from Greek 'oikonomia.' British English spelling; American English uses 'economize.' The suffix '-ise' is the British variant of '-ize.'
During the British rationing of World War II, entire generations learned to economise so thoroughly that the British still spend less on food as a percentage of income than almost any wealthy nation.
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