[{"Bold_text": "noun", "List Items": ["a person who operates a machine, apparatus, or the like:a telegraph operator.", "a person who operates a telephone switchboard, especially for a telephone company.", "a person who manages a working or industrial establishment, enterprise, or system:the operators of a mine.", "a person who trades in securities, especially speculatively or on a large scale.", "a person who performs a surgical operation; a surgeon.", "Mathematics.a symbol for expressing a mathematical operation .a function, especially one transforming a function, set, etc., into another:a differential operator.", "a symbol for expressing a mathematical operation .", "a function, especially one transforming a function, set, etc., into another:a differential operator.", "Informal.a person who accomplishes goals or purposes by devious means; faker; fraud.a person who is adroit at overcoming, avoiding, or evading difficulties, regulations, or restrictions.a person who is extremely successful with or smoothly persuasive to potential sexual or romantic partners.", "a person who accomplishes goals or purposes by devious means; faker; fraud.", "a person who is adroit at overcoming, avoiding, or evading difficulties, regulations, or restrictions.", "a person who is extremely successful with or smoothly persuasive to potential sexual or romantic partners.", "Genetics.a segment of DNA that interacts with a regulatory molecule, preventing transcription of the adjacent region."]}]