The pointed head, or end, of a spear. / One who leads or initiates an activity (such as an attack or a campaign). / The leading military unit in an attack.

(transitive) To drive or campaign ardently for, as an effort, project, etc.

plural of spearheader

One who spearheads a movement, campaign, etc.

plural of spearhead

Third-person singular simple present indicative form of spearhead

present participle of spearhead

simple past tense and past participle of spearhead