Vice president is a person who is second in command to a president and he acts if something happens to the president. Vice president is also a club or corporate title for a person in charge of a specific department or function. (noun)
An example of vice president is someone who will take over for the US president if the President is assassinated.
An example of vice president is the second in command at a company or in a club.
See Vice President in Webster's New World College Dictionary
☆ the elected officer in the U.S. government who acts as president of the Senate and succeeds to the Presidency in the event of the President's death, incapacity, or removal
noun
an officer next in rank below a president, acting during the president's absence or incapacity
any of several officers of a company, institution, etc., each in charge of a separate department