30 Synonyms Antonyms of SPEARHEAD MerriamWebsterSynonym terms for spearheading include headlining, paving the way for, promoting, taking the lead in, being the vanguard of, igniting, instigating, promoting and inaugurating. Other words related to variant include word with similar meaning as well as link to thesaurus. Content tailored to target the keyword synonym spearheading can be developed to attract and retain readers.