Spearheading definition of spearheading by The Free DictionarySynonym phrases of leading encompass steering, trailblazing, championing, taking the lead in, being the vanguard of, propelling, instigating, promoting along with ushering in. Synonyms related to alternate encompass equivalent as well as thesaurus entry. Text tailored to target the keyword spearheading alternative word can be developed to attract and retain readers.