Definition of "spearheading" [spearheading]

• Present participle of spearhead. (verb)

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• "Labor unions are again spearheading a major get-out-the-vote drive for Democrats around the country, but if current patterns hold, voters from union households will end up splitting their votes more evenly this year than they have in recent elections."
• "I have come to appreciate the indispensable role of electric power in spearheading Ontario's expansion."
• "Driving the redesign was the idea that the State Department's online presence could do a better job of handling the more, well, boring part of its responsibilities -- assisting travelers with passports, circulating travel advisories -- while also boosting the profile of the more exciting elements of its mission: namely spearheading U.S. foreign policy around the globe."