An officer elected or appointed to preside over a corporation, company or assembly of men, to keep order, manage their concerns or govern their proceedings; as the president of a banking company; the president of a senate.

An officer appointed or elected to govern a province or territory, or to administer the government of a nation. The president of the United States is the chief executive magistrate .

The chief officer of a college or university.

A tutelar power. Just Apollo, president of verse. Vice-president, one who is second in authority to the president. The vice-president of the United States is president of the senate ex officio, and performs the duties of president when the latter is removed or disabled.