spearhead

Words with a similar base: spearhead

'spearhead'

[spearhead.n.01] as in: someone who leads or initiates an activity (attack or campaign etc.)

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'spearhead'

[spearhead.n.02] as in: the leading military unit in an attack

'spearhead'

[spearhead.n.03] as in: the head and sharpened point of a spear

'spearhead'

[spearhead.v.01] as in: be the leader of

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Examples:
She spearheaded the effort to find a cure for the disease