plural spearheads
: a person, thing, or group that organizes or leads something (such as a movement or attack)
Her book was the spearhead of the clean water movement.
spearheads; spearheaded; spearheading
: to be the leader of (something, such as a political movement)
She spearheaded the campaign for better schools.
The movement was spearheaded by the teachers' union.
Cite this Entry
“Spearhead.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/spearhead. Accessed 17 Apr. 2026.
Copy Citation
