foreperson

1. The chair and spokesperson for a jury: "A jury gives no reasons for its decision; it reaches a collective result, announced by the foreperson" (Hiller B. Zobel).
2. The leader of a work crew, as in a factory.

noun

Someone who directs and supervises workers: boss, director, foreman, forewoman, head, manager, overseer, superintendent, supervisor, taskmaster, taskmistress. Informal straw boss. Slang chief. See over/under.

The presiding member of the jury and the person who speaks on the jury's behalf when communicating with the court or in rendering the jury's verdict. Normally the individual selected first or seated in the number one position in the jury box is designated the foreperson.

The noun has one meaning:

Meaning #1: the presiding member of the jury and the one who speaks on their behalf