s, S S or S. Sabbath saber saber-toothed tiger sable sabotage sac sack¹ sack² sacred sacrifice sad sadden saddle safari safe safeguard safety safety belt safety pin sag sage sagebrush said sail sailboat sailor saint Saint Bernard sake salad salamander salary sale salesman salesperson saleswoman saliva salmon salt saltwater salty salute salvage salvation salve same sample sanctuary sand sandal sandbar sandbox sandpaper sandpiper sandstone sandwich sandy sane sang sanitation sanity sank sap sapling sapphire sarcastic sardine sari sash¹ sash² Sask. Saskatchewan sat Sat. Satan satellite satin satisfaction satisfactory satisfy saturate Saturday Saturn sauce saucepan saucer Saudi Arabia sausage savage save savings saw¹ saw² sawdust sawmill sawn saxophone say saying SC S.C. scab scabbard scaffold scale¹ scale² scale³ scalene triangle scallion scallop scalp scaly scamper scan scandal Scandinavia Scandinavian scant scar scarce scarcely scare scarecrow scarf scarlet scary scatter scavenger scene scenery scenic scent scepter schedule scheme scholar scholarship school¹ school² schoolhouse schooner schwa science scientific scientist scissors scold scoop scope scorch score scorn scornful scorpion Scot Scotch Scotland Scottish scoundrel scour¹ scour² scout scoutmaster scowl scramble scrap scrapbook scrape scratch scream screech screen screw screwdriver scribble scribe script scroll scrub scruple scrupulous scuba diving scuff scuffle sculptor sculpture scurry scurvy scythe SD S.D. or S. Dak. SE or S.E. sea sea anemone seaboard seacoast seafaring seafood sea gull sea horse seal¹ seal² sea lion seam seaman seamstress seaplane seaport search searchlight seashell seashore seasick season seasonal seasoning seat seat belt sea urchin seaweed sec. secede second¹ second² secondary secondary school secondhand secrecy secret secretary secrete sect section secure security sedan sediment sedimentary see seed seedling seek seem seen seep seesaw segment segregation seine seismograph seize seldom select selection self self- self-addressed self-confidence self-conscious self-control selfish self-respect sell selves semaphore semester semicircle semicolon semifinal seminary Seminole senate senator send Senegal senior senior citizen señor señora señorita sensation sensational sense sense organ sensible sensitive sent sentence sentiment sentimental sentry sepal separate separation Sept. September sequence sequoia serene serf sergeant serial series serious sermon serpent serum servant serve service service station session set setter settle settlement settler seven seventeen seventeenth seventh seventieth seventy several severe sew sewage sewer sewing machine sewn sex shabby shack shad shade shadow shady shaft shaggy shake shaky shale shall shallow shame shampoo shamrock shape share shark sharp sharpen shatter shave shaving shawl she shear shears sheath she’d shed¹ shed² sheep sheer sheet sheik shelf shell she’ll shellac shellfish shelter shelves shepherd sherbet sheriff she’s Shetland pony shied shield shift shilling shimmer shin shine shingle shiny ship -ship shipment shipping shipshape shipwreck shipyard shirk shirt shiver shoal shock¹ shock² shock³ shocking shod shoe shoelace shone shook shoot shooting star shop shoplift shopping center shore short shortage short circuit shortcoming shorten shortening shorthorn shortly shortsighted shortstop shot¹ shot² should shoulder shoulder blade shouldn’t shout shove shovel show shower shown show-off showy shrank shred shrew shrewd shriek shrill shrimp shrine shrink shrivel shrub shrug shrunk shrunken shudder shuffle shun shut shutter shuttle shy Siamese cat sick sickle sickly sickness side sideline sideshow sidestep sidetrack sidewalk sideways siege sierra Sierra Leone siesta sieve sift sigh sight sightless sightseeing sign signal signature significance significant sign language silence silent silhouette silicon silk silkworm silky sill silly silo silt silver silversmith silverware similar similarity simmer simple simple sentence simplicity simplify simply simultaneous sin since sincere sinew sing Singapore singer single single-handed singular sinister sink sinus Sioux sip siphon sir siren sister sisterhood sister-in-law sit site situate situation sit-up six sixteen sixteenth sixth sixtieth sixty sizable size sizzle SK skate¹ skate² skateboard skeleton skeptical sketch sketchy ski skid skill skilled skillet skillful skim skim milk skin skin diving skinny skip skirt skit skull skunk sky skydiving skylark skylight skyline skyrocket skyscraper slab slack slacks slain slam slander slang slant slap slash slat slate slaughter slave slavery slay sled sledgehammer sleek sleep sleeping bag sleepy sleet sleeve sleigh slender slept slew slice slick slid slidden slide slight slim slime slimy sling slingshot slip¹ slip² slipper slippery slit slither sliver slogan sloop slope sloppy slot sloth slouch slovenly slow slug¹ slug² sluggish sluice slum slumber slump slung slush sly smack small small intestine small letter smallpox smart smash smear smell smelt¹ smelt² smile smock smog smoke smoke alarm smokestack smoky smolder smooth smother smudge smug smuggle snack snail snake snap snapdragon snapshot snare snare drum snarl¹ snarl² snatch sneak sneaker sneaky sneer sneeze snicker sniff sniffle snip snipe snob snooze snore snorkel snort snout snow snowball snowflake snowman snowmobile snowplow snowshoe snowstorm snowy snub snug snuggle so soak soap soapy soar sob sober soccer sociable social socialism socialist social studies society sock socket sod soda soda fountain soda water sodium sofa soft softball soft drink soften software soggy soil¹ soil² solar solar energy solar system sold solder soldier sole¹ sole² sole³ solemn solid solitary solo soloist soluble solution solve Somalia somber sombrero some somebody someday somehow someone somersault something sometime sometimes somewhat somewhere son sonar song songbird son-in-law soon soot soothe sophisticated sophomore soprano sore sorrel sorrow sorrowful sorry sort SOS sought soul sound¹ sound² sound³ sound´ soundproof soup sour source south South Africa South America South American South Carolina South Dakota southeast southeastern southern southerner Southern Hemisphere Southern Yemen South Korea South Pole southward southwards southwest southwester southwestern souvenir sovereign Soviet Soviet Union sow¹ sow² soybean space spacecraft spaceship space shuttle space station spacesuit spacewalk spade¹ spade² spaghetti Spain span Spaniard spaniel Spanish spank spare spark sparkle sparrow sparse spasm spat¹ spat² spatter spatula spawn speak speaker spear spearmint special specialist specialize specialty species specific specimen speck spectacle spectacular spectator spectrum speculate sped speech speechless speed speedometer spell¹ spell² spell³ speller spelling spelt spend sperm sperm whale sphere sphinx spice spicy spider spied spike¹ spike² spill spin spinach spinal column spinal cord spindle spine spinning wheel spiral spire spirit spirited spiritual spit¹ spit² spite splash splashdown splendid splendor splint splinter split spoil spoilt spoke¹ spoke² spoken sponge sponsor spontaneous spool spoon spore sport sportsmanship spot spotless spotlight spouse spout sprain sprang sprawl spray spread spring springboard sprinkle sprinkler sprint sprout spruce sprung spun spur spurt sputter spy spyglass sq. squabble squad squadron squall square square dance square root squash¹ squash² squat squawk squeak squeal squeeze squid squint squirm squirrel squirt Sr. Sri Lanka St. stab stability stable¹ stable² stack stadium staff stag stage stagecoach stagger stagnant stain stair staircase stairway stake stalactite stalagmite stale stalk¹ stalk² stall¹ stall² stallion stamen stamina stammer stamp stampede stand standard stanza staple¹ staple² stapler star starboard starch stare starfish starling starry Stars and Stripes Star-Spangled Banner start startle starve state stately statement statesman static static electricity station stationary stationery station wagon statistics statue status statute stave staves stay¹ stay² steadfast steady steak steal steam steamboat steam engine steamer steamroller steamship steed steel steel wool steep¹ steep² steeple steer¹ steer² stegosaurus stem¹ stem² stencil step stepfather stepmother steppe stereo sterilize sterling stern¹ stern² stethoscope stew steward stewardess stick¹ stick² sticker sticky stiff stifle still stilt stimulate stimuli stimulus sting stinger stingray stingy stink stir stirrup stitch stock stockade stocking stocky stockyard stoke stole stolen stomach stomp stone Stone Age stood stool stoop¹ stoop² stop stoplight stopper stopwatch storage store storehouse storekeeper stork storm stormy story¹ story² stout stove stow stowaway straggle straight straighten straightforward strain¹ strain² strainer strait strand¹ strand² strange stranger strangle strap strategy stratosphere straw strawberry stray streak stream streamer streamline street streetcar streetlight strength strengthen strenuous stress stretch stretcher stricken strict stridden stride strike string string bean strip¹ strip² stripe strive striven strode stroke¹ stroke² stroll strong stronghold strove struck structure struggle strum strung stub stubble stubborn stuck student studio study stuff stuffing stuffy stumble stump stun stung stunk stunt¹ stunt² stupid sturdy sturgeon stutter sty¹ sty² style subdivide subdue subject submarine submerge submit subordinate subscribe subscription subsequent subset subside substance substantial substitute subtle subtract subtraction subtrahend suburb suburban subway succeed success successful succession successive successor such suck sucker suction Sudan sudden suds sue suede suffer suffering sufficient suffix suffocate suffrage sugar sugar beet sugarcane suggest suggestion suicide suit suitable suitcase suite suitor sulfur sullen sulphur sultan sum sumac summarize summary summer summit summon summons sun Sun. sunbathe sunburn sunburnt sundae Sunday sundial sundown sunflower sung sunglasses sunk sunken sunlight sunny sunrise sunset sunshine suntan superb superintendent superior superiority superlative supermarket supernatural superstition superstitious supervise supervisor supper supple supplement supply support suppose supreme Supreme Court sure surely surf surface surfboard surge surgeon surgery Suriname surname surpass surplus surprise surrender surround surroundings survey surveyor survival survive survivor suspect suspend suspenders suspense suspension suspension bridge suspicion suspicious SW or S.W. swallow¹ swallow² swam swamp swan swarm sway swear sweat sweater sweatshirt Sweden Swedish sweep sweet sweeten sweetener sweetheart sweet pea sweet potato swell swelling swept swerve swift swim swimmer swindle swine swing swirl swish Swiss switch switchboard Switzerland swivel swollen swoop sword swordfish swore sworn swum swung sycamore syllable symbol symbolize symmetric symmetrical symmetry sympathetic sympathize sympathy symphony symptom synagogue synonym synonymous synthetic Syria syrup system