chieftain
🇺🇸
/ˈtʃiːftən/
🇬🇧
/ˈtʃiːftən/
A person who leads a group, especially a clan or tribe.
The chieftain led his people through the difficult times with wisdom and strength.
A person with significant influence or authority in an organization.
The chieftain of the company made the final decision on the new project.