symmetry swoop syrup swing swindle synopsis synonymous symbol synchronize symptom symposium synthetic synthesis swerve swelter swell sway swamp suspicious suspicion suspense suspend susceptible sustain survive surveyor survey surpass surplus surmount surmise surly surfeit surf supreme supremacy supplement supple supervise superstition supersede superintendent superficial superb sundry sumptuous summon summit summation summarize sultry summary sullen sulky suffrage sufficient sue suck succumb succulent succession succinct succeed subterranean substantiate subvert subtle substantial subsistence subsist subsidy subsidiary subservient subsequent subscribe subordinate submit submissive sublime sublimate subjugate subjection subdue sturdy suave stunt stun stumble stuffy stuff stub stroll strive strife stripe strip strident stringent stride stress strenuous streak stray strategy strap strand strait strain straddle stout stoop stolid stoical stodgy stock stir stipulate stipend stint stingy stigma stimulate stick sterile steer Stoic steadfast staunch steward stern statute status stature static stationary stately startle stark staple stand-in stall stalk stale stake stain stagnant stagger stack stab squeeze squeamish squeak squash squander squalid squabble spurt spur sprout sprint sprinkle spray sprawl sprain spoil spout spot sporadic spontaneous split splinter splice splendor spiny spill spew spice spineless spin sphere spell speculative speculate spectrum spectator specimen spectacular spectacle specify species spasm sparse spark spacious sovereign sparing span souvenir sore sour sound sort sordid sophisticated soothe sonorous somber solvent solitude solitary solidarity solicitous solemn solicit sojourn soggy sole sociable sober soar soak snug snout snobbish sneer sneak snatch snarl snag snare smuggle smug smudge smother smear smash sly smack slump slumber slough slovenly sloppy slope slither slippery slim slick slender sleek slot slaughter slash slap slant slander slake slag slacken slack skyrocket skulk skirmish skimpy skull skeptical skim sketchy sketch skeptic skeleton site sip sinister simultaneous simulate singe sift siege shun shrug shroud shrivel shrink shrewd shriek shred shove shifty shiftless shield shed shuttle sheathe shear sham shallow shaft shady shackle shift severe sever session servile serpentine sermon serenity serene sequence sentry sentence sentiment sensuous sensational sensation semblance self-esteem seismic segregate seethe seep seemly seeming sedentary segment sedate sediment secular sect secretion secrete seclusion seclude seasoning seam scurry scud scrutinize sculpture scrupulous scruple scribble script scrub screech scratch scrape scrap scramble scourge scornful scorn scorch scope schism scoop scoff scheme scent scenic scatter scar scanty scandal scale savory savor satire satirize satiate sardonic sarcasm saturate sanity sanitation sanitary sanguine sane sanction sample sap salvation salutary saliva salve sagacious salvage saga saddle sack sacred sum up switch to oils synonymous with susceptible to swarm of switch to substitute A for B subject to subject matter stretch out superior to stinging cell start out still life arrangement spring up subject of much debate sperm whale spring into being speed up sum total stem from stock exchange stand at standards of admission string instrument speak of space shuttle sort out social worker slow down slip away slavish copy solo instrument soundly asleep space agency social concerns side with sign language sieve tube sink into an existence shut out shut down show off short of set in motion set the table solar astronomer set up shine through set the stage for shift from to. sense organ service industry seek after set a record seal up second job sea anemone scoop up scholarly attainment scat singing satellite city