panel
Definitions
A distinct section or division of a surface, typically rectangular, such as a piece of wood or glass set into a door or wall.
A small group of people brought together to discuss, investigate, or decide on a particular matter in front of an audience.
A board or section of a board containing instruments and controls for the operation of a machine or system.
Examples
The expert panel discussed the future of renewable energy during the conference.
He carefully replaced the damaged wooden panel on the side of the cabinet.
The control panel allows the pilot to monitor all engine functions simultaneously.