preside
pre.side \pri-'zi-d\ vi [L praeside-re to guard, preside over, lit., to sit in front of, sit a]t the head of, fr. prae- + sede-re to sit - more at SIT 1a: to occupy the place of authority : act as president, chairman, or mo derator 1b: to occupy a position similar to that of a president or chairman 2: to exercise guidance, direction, or control 3: to occupy a position of featured instrumental performer