Definiciones
1.NounThe pointed head, or end, of a spear.
2.NounSomething or somebody leading or initiating an activity (such as an attack or campaign).
3.NounThe leading military unit in an attack.
4.NounA player who initiates attacking moves.
5.VerbTo drive or campaign ardently for (an effort, project, etc.); to direct."He spearheaded the entire project from day one."