[{"Bold_text": "verb (used with object)", "List Items": ["to set .", "to set (an electric or electronic appliance) to become activated at a designated time:We preset the coffeemaker to go on at 6 a.m.", "to adjust (a connector, switch, or the like) so that when activated it will perform a designated function:The tuning buttons on the radio are preset to my favorite FM stations."]}, {"Bold_text": "adjective", "List Items": ["set advance:a preset radio adjusted to receive certain stations.", "(of the guidance system of a missile or the course of flight it determines) set launching to reach a specific destination without any alteration in response to signals from the ground."]}, {"Bold_text": "noun", "List Items": ["a knob or button that activates a preset appliance:Just push the preset and coffee will be ready when you get up.", "a similar device on a radio that can be activated to tune in a preselected station."]}]