Wiktionary
vice chairman
n. A person who takes on the responsibilities of a chairman in his absence
WordNet
vice chairman
n. one ranking below or serving in the place of a chairman
Usage examples of "vice chairman".
Myers, the tall, gentlemanly vice chairman of the Joint Chiefs of Staff, was slated to move up to be.
The Democratic Senator, a lawyer and vice chairman of the legislature’.
Five years later, Kamil was vice chairman when Javier Perez de Cuellar stepped down.
If the Vice Chairman of the Board of Craig, Powell, Kenyon and Dawes (who had a Skyclub Card with a discreet symbol that he was to be treated as a Very Very Important Person as opposed to a frequent traveler who was a salesman, for example) wanted to go to Dothan, Alabama, she was being paid to see that he got there in the smoothest possible way.