¹cast

discard, cast, shed, slough, scrap, junk mean to get rid of. discard implies the letting go or throwing away of something that has become useless or superfluous though often not intrinsically valueless <discard old clothes>. cast, especially when used with off, away, or out, implies a forceful rejection or repudiation <cast off her friends>. shed and slough imply a throwing off of something both useless and encumbering and often suggest a consequent renewal of vitality or luster <shed a bad habit> <finally sloughed off the depression>. scrap and junk imply throwing away or breaking up as worthless in existent form <scrap all the old ways> <would junk our educational system>.

throw, cast, toss, fling, hurl, pitch, sling mean to cause to move swiftly through space by a propulsive movement or a propelling force. throw is general and interchangeable with the other terms but may specifically imply a distinctive motion with bent arm <can throw a fastball and a curve>. cast usually implies lightness in the thing thrown and sometimes a scattering <cast it to the winds>. toss suggests a light or careless or aimless throwing and may imply an upward motion <tossed the coat on the bed>. fling stresses a violent throwing <flung the ring back in his face>. hurl implies power as in throwing a massive weight <hurled himself at the intruder>. pitch suggests throwing carefully at a target <pitch horseshoes>. sling stresses either the use of whirling momentum in throwing or directness of aim <slung the bag over his shoulder>.