[{"Bold_text": "noun", "List Items": ["a series of persons relieving one another or taking turns; shift.", "a fresh set of dogs or horses posted in readiness for use in a hunt, on a journey, etc.", "Sports. relay race relay race.a length or leg in a relay race.", "relay race relay race.", "a length or leg in a relay race.", "Machinery.an automatic control device in which the settings of valves, switches, etc., are regulated by a powered element, as a motor, solenoid, or pneumatic mechanism actuated by a smaller, sensitive element.", "Electricity.a device, usually consisting of an electromagnet and an armature, by which a change of current or voltage in one circuit is used to make or break a connection in another circuit or to affect the operation of other devices in the same or another circuit.", "(initial capital letter)U.S. Aerospace.one of an early series of experimental low-altitude, active communications satellites."]}, {"Bold_text": "verb (used with object)", "List Items": ["to carry forward by or as if by relays:to relay a message.", "to provide with or replace by fresh relays.", "Electricity.to retransmit (a signal, message, etc.) by or as if by means of a telegraphic relay."]}, {"Bold_text": "verb (used without object)", "List Items": ["Electricity.to retransmit a signal or message electronically."]}, {"Bold_text": "verb (used with object)", "List Items": ["re-lay ."]}]