not limiting the reference of a modified word or phrase; "the nonrestrictive clause in `I always buy his books, which have influenced me greatly,' refers to his books generally and adds an additional fact about them"
acting or moving or capable of acting or moving quickly; "fast film"; "on the fast track in school"; "set a fast pace"; "a fast car"
at a rapid tempo; "the band played a fast fox trot"
(used of timepieces) indicating a time ahead of or later than the correct time; "my watch is fast"
securely fixed in place; "the post was still firm after being hit by the car"
resistant to destruction or fading; "fast colors"
(of surfaces) conducive to rapid speeds; "a fast road"; "grass courts are faster than clay"
quickly or rapidly (often used as a combining form); "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"
firmly or tightly; "held fast to the rope"; "her foot was stuck fast"; "held tight"
abstain from eating; "Before the medical exam, you must fast"
abstain from certain foods, as for religious or medical reasons; "Catholics sometimes fast during Lent"