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1. Someone who leads or initiates an activity (attack or campaign etc.)
    
2. (military) the leading military unit in an attack
    
3. The head and sharpened point of a spear
   - spearpoint, spear-point

1. Be the leader of
   "She spearheaded the effort to find a cure for the disease"

Derived forms: spearheading, spearheaded, spearheads

Type of: force, head, lead, leader, military force, military group, military unit, point

Part of: lance, pike, shaft, spear

Encyclopedia: Spearhead