A time keeper is someone who is responsible for keeping track of time. A NEWSSTAND is a place where newspapers, magazines, and other publications are sold. FOB stands for 'free on board, ' which is a term used in international trade to indicate when the seller's responsibility for the goods ends and the buyer's responsibility begins. An EDITOR is someone who is responsible for preparing written material for publication. A DRUMBEAT is a steady rhythm created by a drum. A CLOCK is a device used to measure and keep track of time. A metronome is a device used to measure and maintain a steady tempo. Finally, a SECONDHAND is a hand on a CLOCK or watch that moves in increments of seconds.