noun

• A (usually) rectangular section of a surface, or of a covering or of a wall, fence etc.
• (comics) An individual frame or drawing in a comic.
  "The last panel of a comic strip usually contains a punchline."
• (graphical user interface) A type of GUI widget, such as a control panel.
  "admin panel"
• (law) A document containing the names of persons summoned as jurors by the sheriff.
  "To this end the sheriff returns his compulsive process , the writ of habeas corpora, or distringas , with the panel of jurors annexed, to the judge's officer in court."

verb

• (obsolete, transitive) To enter (jury members) on an official list of jurors; to empanel.
• (obsolete, transitive) To fit (an animal, especially a mule or ass) with a panel or simple padded saddle.
  "The knight […] arose, and commanded Sancho to saddle his horse and pannel his ass immediately."
• (transitive) To fit (a room etc.) with panels.