spearhead meaning and definition

SPEARHEAD noun

Definition of spearhead (noun)

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

SPEARHEAD verb

Definition of spearhead (verb)

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