[{"Bold_text": "adjective", "List Items": ["moving or able to move, operate, function, or take effect quickly; quick ; swift ; rapid :a fast pain reliever;a fast horse;a fast pain reliever;a fast thinker.Synonyms: speedy , fleet Antonyms: slow", "done in comparatively little time; taking a comparatively short time:fast work.a fast race;fast work.Synonyms: speedy , fleet Antonyms: slow", "(of time)indicating a time in advance of the correct time, as of a clock.noting or according to daylight-saving time.", "indicating a time in advance of the correct time, as of a clock.", "noting or according to daylight-saving time.", "adapted to, allowing, productive of, or imparting rapid movement:one of the fastest pitchers in baseball.a hull with fast lines;one of the fastest pitchers in baseball.", "characterized by unrestrained conduct or lack of moral conventions, especially in sexual relations; wanton; loose:Some young people in that era were considered fast, if not downright promiscuous.Synonyms: prodigal , wild , immoral , profligate , dissolute , dissipated Antonyms: restrained", "characterized by hectic activity:leading a fast life.Antonyms: restrained", "resistant:acid-fast.", "firmly fixed in place; not easily moved; securely attached.Synonyms: firm , immovable , tight , secure Antonyms: loose", "held or caught firmly, so as to be unable to escape or be extricated:an fast in a trap.Synonyms: inextricable", "firmly tied, as a knot.", "closed and made secure, as a door, gate, or shutter.", "such as to hold securely:to lay fast hold on a thing.", "firm in adherence; loyal ; devoted :fast friends.Synonyms: steadfast , faithful", "permanent, lasting, or unchangeable:a hard and fast rule.a fast color;a hard and fast rule.Synonyms: enduring", "Informal.(of money, profits, etc.) made quickly or easily and sometimes deviously:He earned some fast change helping the woman with her luggage.cleverly quick and manipulative in making money:a fast operator when it comes to closing a business deal.", "(of money, profits, etc.) made quickly or easily and sometimes deviously:He earned some fast change helping the woman with her luggage.", "cleverly quick and manipulative in making money:a fast operator when it comes to closing a business deal.", "Photography.(of a lens) able to transmit a relatively large amount of light in a relatively short time.(of a film) requiring a relatively short exposure time to attain a given density.", "(of a lens) able to transmit a relatively large amount of light in a relatively short time.", "(of a film) requiring a relatively short exposure time to attain a given density.", "Horse Racing.(of a track condition) completely dry.(of a track surface) very hard.", "(of a track condition) completely dry.", "(of a track surface) very hard."]}, {"Bold_text": "adverb", "List Items": ["quickly, swiftly, or rapidly.", "in quick succession:Events followed fast upon one another to the crisis.", "tightly ; firmly :to hold fast.Synonyms: tenaciously , fixedly , securely", "soundly :fast asleep.", "in a wild or dissipated way.Synonyms: prodigally , wildly , recklessly", "ahead of the correct or announced time.", "Archaic.close; near:fast by."]}, {"Bold_text": "noun", "List Items": ["a fastening for a door, window, or the like."]}, {"Bold_text": "verb (used without object)", "List Items": ["to abstain from all food.", "to eat only sparingly or of certain kinds of food, especially as a religious observance."]}, {"Bold_text": "verb (used with object)", "List Items": ["to cause to abstain entirely from or limit food; put on a fast:to fast a patient for a day before surgery."]}, {"Bold_text": "noun", "List Items": ["an abstinence from food, or a limiting of one's food, especially when voluntary and as a religious observance; fasting.", "a day or period of fasting."]}, {"Bold_text": "noun", "List Items": ["a chain or rope for mooring a vessel."]}]