Definition: abstaining from food
Main entry: fast
Definition: abstain from eating
Usage: Before the medical exam, you must fast
Main entry: fast
Definition: abstain from certain foods, as for religious or medical reasons
Usage: Catholics sometimes fast during Lent
Main entry: fast
Definition: (of a photographic lens or emulsion) causing a shortening of exposure time
Usage: a fast lens
Main entry: fast, firm, truehearted, loyal
Definition: unwavering in devotion to friend or vow or cause
Usage: a firm ally; loyal supporters; the true-hearted soldier...of Tippecanoe- Campaign song for William Henry Harrison; fast friends
Main entry: fast
Definition: acting or moving or capable of acting or moving quickly
Usage: fast film; on the fast track in school; set a fast pace; a fast car
Main entry: fast
Definition: at a rapid tempo
Usage: the band played a fast fox trot
Main entry: fast
Definition: (used of timepieces) indicating a time ahead of or later than the correct time
Usage: my watch is fast
Main entry: firm, fast, immobile
Definition: securely fixed in place
Usage: the post was still firm after being hit by the car
Main entry: quick, fast, flying
Definition: hurried and brief
Usage: paid a flying visit; took a flying glance at the book; a quick inspection; a fast visit
Main entry: riotous, profligate, libertine, debauched, degenerate, degraded, dissipated, dissolute, fast
Definition: unrestrained by convention or morality
Usage: Congreve draws a debauched aristocratic society; deplorably dissipated and degraded; riotous living; fast women
Main entry: fast
Definition: resistant to destruction or fading
Usage: fast colors
Main entry: fast
Definition: (of surfaces) conducive to rapid speeds
Usage: a fast road; grass courts are faster than clay
Main entry: fast
Definition: quickly or rapidly (often used as a combining form)
Usage: how fast can he get here?; ran as fast as he could; needs medical help fast; fast-running rivers; fast-breaking news; fast-opening (or fast-closing) shutters
Definition: firmly or closely
Usage: held fast to the rope; her foot was stuck fast; held tight