sanction sand systematic system synthetic synthesis syndrome symptom symposium symphony sympathy sympathize sympathetic symmetry symbol sword switch swing swim swift swell sweet sweat sway sweep sweater swear swarm swan swamp swallow sustain suspicious suspicion suspend suspect susceptible survive survival survey surroundings surrender surplus surround surpass surprise surgery surname surgeon surge surface sure supreme suppress suppose supply support supplement supervise supper superstition superiority supersonic supermarket superior superficial superfluous superb super sunshine sunset sunrise summit Sunday summon sun summer sulfur summary summarize suite suitable sum suit suicide suggestion suggest sugar sufficient suffice suffer sue sudden suck such successor successive succession successful success succeed substitute substantial substance subway suburb subtract subtle subsidy subsequent subscribe subordinate submit submerge submarine subjective subject style sturdy stupid stun stumble stuff study studio student stubborn struggle structure strong stroll stroke strive strip string strike strife stripe striking strenuous stride strict stretch stress strengthen strength street streamline stream strawberry straw strategy strain strap stranger strange straightforward straight stove story storm storey store storage stop stoop stool stomach stocking stone stock stitch still stir sting stimulate stiff sticky stick stereotype stereo step steward stem steer steep steel steamer steam steady steal steak stern statute stay status statue statistical stationery station stationary static statesman statement state starve startle start stare star staple standpoint standard stand stamp stall stalk stale stake staircase stair stain stagger stack stable stage staff stadium stability stab squirrel squeeze square spy spur sprout sprinkle spring spread spray spouse spot sport spoon spontaneous sponsor sportsman sponge spokesman spoil split splendid splash spite spit spiritual spirit spiral spine spin spill spider spicy sphere spend spelling spell speed speech speculate spectrum spectacular spectacle specimen specify specification spectator specific species specialty specialist special spear speaker speak specialize sparkle spark spare span spade spacious spaceship spacecraft space sow south sovereign southern southwest southeast source sour soup sound soul sort sorry sorrow sore sophomore somewhere sophisticated soon song son sometime somewhat sometimes somehow somebody something someone some solve solution solitary solidarity solid solemn sole soldier solar software sofa soda soluble solo sock sociology society soil soft social so-called sociable sober soccer socialism sob soar soak soap sniff snowstorm snow sneeze so sneak snatch snap snake snack smuggle smoke smooth smog smell smash smart small slot sly slum slow smile slope slogan slit slippery slipper slip slim slide slight slice slender sleeve sleep slave slaughter slam slap slack skyscraper sky skirt skip skin skim skull skillful skilled skill sketch skeptical skate ski skeleton size six situation situated site sit sister siren sip sincere sir sink singular single sing since sin simultaneous simulate simply simplify similar simplicity simple silver silly silk silent silicon signify silence significant significance signature signal sign sight sightseeing sigh siege sideways sick shy shuttle shut shutter side shrug shrink shrewd show shout shoulder should shower shove shortly shorthand shot shopkeeper shortcoming shortage short shore shop shoot shock shoe shiver shirt shipment ship shine shilling shift shield shepherd shelter shell shelf sheet sheep sheer shed shear she shave shatter sharp shark share shape shampoo shame sham shallow shady shall shake shaft shadow shade shabby sex sew severe setting setback several seven settlement settle session service serve servant serious series set serial sequence separate sentiment sentence sensitive sensible sense September sensation send senator seminar semester senior senate semiconductor selfish self sell selection seldom seize seemingly segregate segment seem seed select seek see secure sector security secret secondary section secretary second seat season seaside search seam seal sea sculpture scrutiny script screw screen scream scratch scrape scrap scramble score scope scold scissors scientist scientific science school scorn scholarship schedule scout scholar scheme scent scenery scarcely scarce scatter scarf scare scar scandal scene scan scale say saw saving save savage sausage saucer sauce satisfactory Saturday satisfy saturate satellite sarcastic satisfaction satire sane sandwich sample same salvation salute salt salesman sale salary salad sake sailor sail saddle safety safeguard safe sacrifice sad sacred sack Saint