Open English Wordnet
Nouns
Verbs
(v)fastabstain from certain foods, as for religious or medical reasons“Catholics sometimes fast during Lent” (v)fastabstain from eating“Before the medical exam, you must fast” Adjectives
(a)fastacting or moving or capable of acting or moving quickly“fast film”,
“on the fast track in school”,
“set a fast pace”,
“a fast car” (a)fast(used of timepieces) indicating a time ahead of or later than the correct time“my watch is fast” (a)fastat a rapid tempo“the band played a fast fox trot” (s)fast(of surfaces) conducive to rapid speeds“a fast road”,
“grass courts are faster than clay” (s)fastresistant to destruction or fading“fast colors” (s)debauched, degenerate, degraded, dissipated, dissolute, libertine, profligate, riotous, fastunrestrained by convention or morality“Congreve draws a debauched aristocratic society”,
“deplorably dissipated and degraded”,
“riotous living”,
“fast women” (s)flying, quick, fasthurried and brief“paid a flying visit”,
“took a flying glance at the book”,
“a quick inspection”,
“a fast visit” (s)fast, firm, immobilesecurely fixed in place“the post was still firm after being hit by the car” (s)firm, loyal, truehearted, fastunwavering in devotion to friend or vow or cause“a firm ally”,
“loyal supporters”,
“the true-hearted soldier … of Tippecanoe” (Campaign song for William Henry Harrison),
“fast friends” (s)fast(of a photographic lens or emulsion) causing a shortening of exposure time“a fast lens” Adverbs
(r)fastquickly 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” (r)fast, tightfirmly or closely“held fast to the rope”,
“her foot was stuck fast”,
“held tight”