Definitions
1.NounThe head of state of a republic, sometimes also the head of government as well, particularly the head of the executive branch of the federal government of the United States of America."The vast majority of presidents have been male."
2.NounA person presiding over a corporation, usually an executive overseeing daily operations under a chief executive officer but sometimes a separate position held by a CEO.
3.NounA person presiding over a meeting.
4.NounA person presiding over a dinner or similar informal conversation.
5.AdjectiveOccupying the first rank or chief place; having the highest authority; presiding.
6.VerbTo act as president; to do presidential duties.
7.NounObsolete form of precedent.