■ noun
1》 a leader or ruler of a people.
↘the head of an organization.
2》 Heraldry an ordinary consisting of a broad horizontal band across the top of the shield.
↘the upper third of the field.
■ adjective
1》 having the highest rank or authority.
2》 most important: the ~ reason.
Derivatives
~dom noun
Origin
ME: from OFr. ~ , chef , based on L. caput 'head'.