1.. To use up or put out; expend: spent an hour exercising.
2. To pay out (money).
3. To wear out; exhaust: The storm finally spent itself.
4. To pass (time) in a specified manner or place: spent their vacation in Paris.
5.
a. To throw away; squander: spent all their resources on futile projects.
b. To give up (one's time or efforts, for example) to a cause; sacrifice.