Which verb means to waste money or resources extravagantly?

The verb that means to waste money or resources extravagantly is "squander." When someone squanders their money, they are often using it carelessly or spending it in a manner that does not yield any value or benefit. This term conveys a sense of indulgence and reckless spending, often without regard for future consequences or the potential loss of those resources.

In contrast, "satiate" refers to satisfying a need or desire fully; it does not imply wasting resources. "Schemer" pertains to someone who devises plans, often with a secretive or mischievous intent, but it doesn't relate to wasting resources. Lastly, "sanction" typically means to approve or ratify, or conversely, it can refer to penalties imposed on actions; it does not denote wastefulness. Thus, "squander" is the most fitting term among the options provided.