The act or process by which something is fueled.(noun)
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Use "fueling" in a sentence
"Urlacher is making leaping interceptions the way the converted safety did at the University of New Mexico and in fueling the Bears '2006 Super Bowl run."
"The data highlight long-standing questions about the role of gun sellers in fueling crime."
"The Center for Public Integrity (CPI) released an extensive report today that shows how complicit Wall Street firms were in fueling the subprime mortgage crisis."