To use up or put out; expend: spent an hour exercising. To pay out (money). To wear out; exhaust: The storm finally spent itself. To pass (time) in a specified manner or place: spent their vacation in Paris. To throw away; squander: spent all their resources on futile projects. To give up (one's time or efforts, for example) to a cause; sacrifice. To pay out or expend money. To be exhausted or consumed.