[{"Bold_text": "adjective", "List Items": ["of or forming the center:the central hut in the village.", "in, at, or near the center:a central position.", "constituting something from which other related things proceed or upon which they depend:a central office.", "principal ; chief ; dominant :the play's central character.Synonyms: primary , leading , key , main , major", "Anatomy, Zoology.of or relating to the central nervous system central nervous system.of or relating to the centrum of a vertebra.", "of or relating to the central nervous system central nervous system.", "of or relating to the centrum of a vertebra.", "Phonetics.(of a speech sound) produced with the tongue articulating neither expressly forward nor in the back part of the mouth, as any of the sounds oflull.", "Physics.(of a force) directed to or from a fixed point."]}, {"Bold_text": "noun", "List Items": ["(formerly)a main telephone exchange.a telephone operator at such an exchange.", "a main telephone exchange.", "a telephone operator at such an exchange."]}, {"Bold_text": "noun", "List Items": ["(in Spanish America and the Philippines) a mill for crushing cane into raw sugar."]}, {"Bold_text": "noun", "List Items": ["a region in central Scotland. 1,016 sq. mi. (2,631 sq. km)."]}]