(nautical) In the merchant navy, the officer who is second in command to the captain, and whose primary duties include managing the maintenance and upkeep of the vessel.

Alternative spelling of commander in chief

The titular head of a nation, as a president or king.

(law) the examination of a witness by the party who called them.

(UK, historical) The presiding judge of the English Exchequer of Pleas.

(anthropology) The chief or headman of a band society.

A chief who leads a group in wartime, a warlord, a war leader.

The leader of government in many semi-autonomous and constituent federal states.

One who provides leadership in the overall management of large projects or initiatives.

The president of the United States. / (Hong Kong, capitalized as office holder) The head of government of Hong Kong / (Macau) The head of government of Macau / The governor of a U.S. state.