0 used as part of the title of particular positions. The person who holds one of these positions is next below in authority to the person who holds the full position and can act for them: --
2 a tool with two parts that can be moved together by tightening a screw so that an object can be held firmly between them while it is being worked on: --
4 used as part of a title to show the rank of an officer or official of a company or organization, immediately below a president or chairperson: --
5 used as part of a job title when someone has a position directly below the person in charge: --
She was made a vice-president.