[{"Bold_text": "noun", "List Items": ["a machine for converting thermal energy into mechanical energy or power to produce force and motion.", "a railroad locomotive.", "a fire engine fire engine.", "Computers.a piece or collection of software that drives a later process (used in combination, as ingame enginesoftware engine). search engine search engine.", "any mechanical contrivance.", "a machine or instrument used in warfare, as a battering ram, catapult, or piece of artillery.", "a means by which something is achieved, accomplished, or furthered:Trade is an engine of growth that creates jobs, reduces poverty, and increases economic opportunity.", "Obsolete.an instrument of torture, especially the rack."]}]