| spectacled | (adjective) wearing, or having the face adorned with, eyeglasses or an eyeglass | Synonyms: bespectacled, monocled |
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| spectacles | (noun) (plural) optical instrument consisting of a frame that holds a pair of lenses for correcting defective vision | Synonyms: eyeglasses, glasses, specs |
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| spectacular | (adjective) having a quality that thrusts itself into attention | Synonyms: outstanding, prominent, salient, striking |
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| (adjective) characteristic of spectacles or drama | - |
| (adjective) sensational in appearance or thrilling in effect | Synonyms: dramatic, striking |
| (noun) a lavishly produced performance | - |
| spectacularly | (adverb) in a spectacular manner | Synonyms: stunningly |
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| spectate | (verb) be a spectator in a sports event | - |
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| spectator | (noun) a woman's pump with medium heel; usually in contrasting colors for toe and heel | Synonyms: spectator pump |
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| (noun) a close observer; someone who looks at something (such as an exhibition of some kind) | Synonyms: looker, viewer, watcher, witness |
| specter | (noun) a mental representation of some haunting experience | Synonyms: ghost, shade, spectre, spook, wraith |
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| (noun) a ghostly appearing figure | Synonyms: apparition, fantasm, phantasm, phantasma, phantom, spectre |
| spectinomycin | (noun) an antibiotic used to treat gonorrhea | - |
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| spectral | (adjective) of or relating to a spectrum | - |
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| (adjective) resembling or characteristic of a phantom | Synonyms: apparitional, ghostlike, ghostly, phantasmal, spiritual |
| spectrality | (noun) Quality of being spectral or ghostly. | - |
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| spectre | (noun) a mental representation of some haunting experience | Synonyms: ghost, shade, specter, spook, wraith |
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| (noun) a ghostly appearing figure | Synonyms: apparition, fantasm, phantasm, phantasma, phantom, specter |
| spectrogram | (noun) a photographic record of a spectrum | Synonyms: spectrograph |
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| spectrograph | (noun) a spectroscope by which spectra can be photographed | - |
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| (noun) a photographic record of a spectrum | Synonyms: spectrogram |
| spectrographic | (adjective) relating to or employing a spectrograph | - |
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| spectrographically | (adverb) by spectrographic means | - |
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| spectrometer | (noun) spectroscope for obtaining a mass spectrum by deflecting ions into a thin slit and measuring the ion current with an electrometer | Synonyms: mass spectrometer |
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| spectrometric | (adjective) of or relating to or involving spectrometry | - |
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| spectrometry | (noun) the use of spectroscopes to analyze spectra | Synonyms: spectrographic analysis, spectroscopic analysis, spectroscopy, spectrum analysis |
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| spectrophotometer | (noun) a photometer for comparing two light radiations wavelength by wavelength | - |
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| spectroscope | (noun) an optical instrument for spectrographic analysis | Synonyms: prism spectroscope |
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| spectroscopic | (adjective) of or relating to or involving spectroscopy | Synonyms: spectroscopical |
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| spectroscopical | (adjective) of or relating to or involving spectroscopy | Synonyms: spectroscopic |
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| spectroscopy | (noun) the use of spectroscopes to analyze spectra | Synonyms: spectrographic analysis, spectrometry, spectroscopic analysis, spectrum analysis |
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| spectrum | (noun) a broad range of related objects or values or qualities or ideas or activities | - |
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| (noun) an ordered array of the components of an emission or wave | - |
| specular | (adjective) capable of reflecting light like a mirror | Synonyms: mirrorlike |
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| speculate | (verb) reflect deeply on a subject | Synonyms: chew over, contemplate, excogitate, meditate, mull, mull over, muse, ponder, reflect, ruminate, think over |
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| (verb) to believe especially on uncertain or tentative grounds | Synonyms: conjecture, hypothecate, hypothesise, hypothesize, suppose, theorise, theorize |
| (verb) talk over conjecturally, or review in an idle or casual way and with an element of doubt or without sufficient reason to reach a conclusion | - |
| (verb) invest at a risk | Synonyms: job |
| speculation | (noun) a hypothesis that has been formed by speculating or conjecturing (usually with little hard evidence) | Synonyms: conjecture |
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| (noun) continuous and profound contemplation or musing on a subject or series of subjects of a deep or abstruse nature | Synonyms: meditation |
| (noun) a message expressing an opinion based on incomplete evidence | Synonyms: conjecture, guess, hypothesis, supposition, surmisal, surmise |
| (noun) an investment that is very risky but could yield great profits | Synonyms: venture |
| speculative | (adjective) showing curiosity | Synonyms: inquisitive, questioning, wondering |
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| (adjective) not based on fact or investigation | Synonyms: notional |
| (adjective) not financially safe or secure | Synonyms: bad, high-risk, risky |
| speculatively | (adverb) with speculation; in a speculative manner | - |
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| speculativeness | (noun) the quality of being a conclusion or opinion based on supposition and conjecture rather than on fact or investigation | - |
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| (noun) financial risk | - |
| speculator | (noun) someone who risks losses for the possibility of considerable gains | Synonyms: plunger |
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| (noun) someone who makes conjectures without knowing the facts | - |
| speculum | (noun) a medical instrument for dilating a bodily passage or cavity in order to examine the interior | - |
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| (noun) a mirror (especially one made of polished metal) for use in an optical instrument | - |
| speech | (noun) the mental faculty or power of vocal communication | Synonyms: language |
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| (noun) (language) communication by word of mouth | Synonyms: language, oral communication, speech communication, spoken communication, spoken language, voice communication |
| (noun) the act of delivering a formal spoken communication to an audience | Synonyms: address |
| (noun) words making up the dialogue of a play | Synonyms: actor's line, words |
| (noun) a lengthy rebuke | Synonyms: lecture, talking to |
| (noun) the exchange of spoken words | - |
| (noun) your characteristic style or manner of expressing yourself orally | Synonyms: delivery, manner of speaking |
| (noun) something spoken | - |
| speechifier | (noun) a person who delivers a speech or oration | Synonyms: orator, public speaker, rhetorician, speechmaker |
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| speechify | (verb) make speeches; hold forth, or harangue with a certain degree of formality | - |
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| speechless | (adjective) temporarily incapable of speaking | Synonyms: dumb |
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| speechlessly | (adverb) in a manner indicating that one is deprived of speech by physical weakness or emotion | - |
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| speechlessness | (noun) the property of being speechless | - |
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| speechmaker | (noun) a person who delivers a speech or oration | Synonyms: orator, public speaker, rhetorician, speechifier |
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| speechmaking | (noun) delivering an address to a public audience | Synonyms: oral presentation, public speaking, speaking |
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| speechwriter | (noun) a writer who composes speeches for others to deliver | - |
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| speed | (noun) changing location rapidly | Synonyms: hurrying, speeding |
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| (noun) a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression | Synonyms: amphetamine, pep pill, upper |
| (noun) a rate (usually rapid) at which something happens | Synonyms: fastness, swiftness |
| (noun) the ratio of the focal length to the diameter of a (camera) lens system | Synonyms: f number, focal ratio, stop number |
| (noun) distance travelled per unit time | Synonyms: velocity |
| (verb) move faster | Synonyms: accelerate, quicken, speed up |
| (verb) cause to move faster | Synonyms: accelerate, speed up |
| (verb) move very fast | Synonyms: hurry, travel rapidly, zip |
| (verb) travel at an excessive or illegal velocity | - |
| (verb) move hurridly | Synonyms: belt along, bucket along, cannonball along, hasten, hie, hotfoot, pelt along, race, rush, rush along, step on it |
| speedboat | (noun) a fast motorboat | - |
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| speeder | (noun) a driver who exceeds the safe speed limit | Synonyms: speed demon |
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| speedily | (adverb) with speed | Synonyms: apace, chop-chop, in short order, quickly, rapidly |
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| speediness | (noun) a rate that is rapid | Synonyms: celerity, quickness, rapidity, rapidness |
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| speeding | (noun) changing location rapidly | Synonyms: hurrying, speed |
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| speedometer | (noun) a meter fixed to a vehicle that measures and displays its speed | Synonyms: speed indicator |
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| speedpaint | (noun) Painting a picture in a very short amount of time | - |
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| speedskater | (noun) an ice-skater who races competitively; usually around an oval course | Synonyms: speed skater |
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| speedup | (noun) the act of accelerating; increasing the speed | Synonyms: acceleration, quickening |
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| speedway | (noun) a racetrack for racing automobiles or motorcycles | - |
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| (noun) road where high speed driving is allowed | - |
| speedwell | (noun) any plant of the genus Veronica | Synonyms: veronica |
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| speedy | (adjective) characterized by speed; moving with or capable of moving with high speed | Synonyms: rapid |
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| (adjective) accomplished rapidly and without delay | Synonyms: quick |
| spelaeologist | (noun) a person who explores caves | Synonyms: potholer, speleologist, spelunker |
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| spelaeology | (noun) the pastime of exploring caves | Synonyms: speleology |
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| (noun) the scientific study of caves | Synonyms: speleology |
| speleologist | (noun) a person who explores caves | Synonyms: potholer, spelaeologist, spelunker |
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| speleology | (noun) the pastime of exploring caves | Synonyms: spelaeology |
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| (noun) the scientific study of caves | Synonyms: spelaeology |
| spell | (noun) a verbal formula believed to have magical force | Synonyms: charm, magic spell, magical spell |
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| (noun) a psychological state induced by (or as if induced by) a magical incantation | Synonyms: enchantment, trance |
| (noun) a time period for working (after which you will be relieved by someone else) | Synonyms: go, tour, turn |
| (noun) a period of indeterminate length (usually short) marked by some action or condition | Synonyms: patch, piece, while |
| (verb) take turns working | - |
| (verb) orally recite the letters of or give the spelling of | Synonyms: spell out |
| (verb) indicate or signify | Synonyms: import |
| (verb) place under a spell | - |
| (verb) write or name the letters that comprise the conventionally accepted form of (a word or part of a word) | Synonyms: write |
| (verb) relieve (someone) from work by taking a turn | - |
| spellbind | (verb) put into a trance | Synonyms: entrance |
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| (verb) attract strongly, as if with a magnet | Synonyms: bewitch, magnetise, magnetize, mesmerise, mesmerize |
| (verb) to render motionless, as with a fixed stare or by arousing terror or awe | Synonyms: fascinate, grip, transfix |
| spellbinder | (noun) an orator who can hold his listeners spellbound | - |
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| spellbinding | (adjective) attracting and holding interest as if by a spell | Synonyms: hypnotic, mesmeric, mesmerizing |
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| spellbound | (adjective) having your attention fixated as though by a spell | Synonyms: fascinated, hypnotised, hypnotized, mesmerised, mesmerized, spell-bound, transfixed |
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| spelldown | (noun) a contest in which you are eliminated if you fail to spell a word correctly | Synonyms: spelling bee, spelling contest |
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| speller | (noun) an introductory textbook to teach spelling | - |
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| (noun) someone who spells words | Synonyms: good speller, poor speller |
| spelling | (noun) forming words with letters according to the principles underlying accepted usage | - |
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| spelt | (noun) hardy wheat grown mostly in Europe for livestock feed | Synonyms: Triticum aestivum spelta, Triticum spelta |
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| spelter | (noun) impure zinc containing about three percent lead and other impurities (especially in the form of ingots) | - |
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| spelunk | (verb) explore natural caves | Synonyms: cave |
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| spelunker | (noun) a person who explores caves | Synonyms: potholer, spelaeologist, speleologist |
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| spend | (verb) pay out | Synonyms: drop, expend |
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| (verb) spend completely | - |
| (verb) use up a period of time in a specific way | Synonyms: pass |
| spendable | (adjective) (used of funds) remaining after taxes | Synonyms: expendable |
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| spender | (noun) someone who spends money to purchase goods or services | Synonyms: disburser, expender |
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| (noun) someone who spends money prodigally | Synonyms: scattergood, spend-all, spendthrift |
| spending | (noun) the act of spending or disbursing money | Synonyms: disbursal, disbursement, outlay |
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| (noun) money paid out; an amount spent | Synonyms: expenditure, outgo, outlay |
| spendthrift | (adjective) recklessly wasteful | Synonyms: extravagant, prodigal, profligate |
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| (noun) someone who spends money prodigally | Synonyms: scattergood, spend-all, spender |
| spent | (adjective) depleted of energy, force, or strength | Synonyms: exhausted |
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| (adjective) drained of energy or effectiveness; extremely tired; completely exhausted | Synonyms: dog-tired, exhausted, fagged, fatigued, gone, played out, washed-out, worn-out, worn out |
| sperm | (noun) the male reproductive cell; the male gamete | Synonyms: sperm cell, spermatozoan, spermatozoon |
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| spermaceti | (noun) a white waxy substance from oil of the sperm whale | - |
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| spermatic | (adjective) consisting of or resembling spermatozoa | Synonyms: spermous |
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| spermatid | (noun) an immature gamete produced by a spermatocyte; develops into a spermatozoon | - |
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| spermatocele | (noun) a swelling on the epididymis or the testis; usually contains spermatozoa | - |
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| spermatocide | (noun) a contraceptive agent that kills spermatozoa | Synonyms: spermicide |
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| spermatocyte | (noun) a male gametocyte that develops into four spermatids | - |
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| spermatogenesis | (noun) development of spermatozoa | - |
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| spermatophyte | (noun) plant that reproduces by means of seeds not spores | Synonyms: phanerogam, seed plant |
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| spermatozoan | (noun) the male reproductive cell; the male gamete | Synonyms: sperm, sperm cell, spermatozoon |
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| spermatozoid | (noun) a motile male gamete of a plant such as an alga or fern or gymnosperm | Synonyms: antherozoid |
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| spermatozoon | (noun) the male reproductive cell; the male gamete | Synonyms: sperm, sperm cell, spermatozoan |
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| spermicidal | (adjective) destructive to spermatozoa | - |
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| spermicide | (noun) a contraceptive agent that kills spermatozoa | Synonyms: spermatocide |
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| spermophile | (noun) any of various terrestrial burrowing rodents of Old and New Worlds; often destroy crops | Synonyms: gopher, ground squirrel |
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| spermous | (adjective) consisting of or resembling spermatozoa | Synonyms: spermatic |
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| spew | (verb) eject the contents of the stomach through the mouth | Synonyms: barf, be sick, cast, cat, chuck, disgorge, honk, puke, purge, regorge, regurgitate, retch, sick, spue, throw up, upchuck, vomit, vomit up |
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| (verb) expel or eject (saliva or phlegm or sputum) from the mouth | Synonyms: ptyalise, ptyalize, spit, spue |
| (verb) eject or send out in large quantities, also metaphorical | Synonyms: eruct, spew out |
| spewer | (noun) a person who vomits | Synonyms: vomiter |
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| spokesperson | (noun) an advocate who represents someone else's policy or purpose | Synonyms: interpreter, representative, voice |
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| subspecies | (noun) (biology) a taxonomic group that is a division of a species; usually arises as a consequence of geographical isolation within a species | Synonyms: race |
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| suspect | (adjective) not as expected | Synonyms: fishy, funny, shady, suspicious |
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| (noun) someone who is under suspicion | - |
| (noun) a person or institution against whom an action is brought in a court of law; the person being sued or accused | Synonyms: defendant |
| (verb) regard as untrustworthy; regard with suspicion; have no faith or confidence in | Synonyms: distrust, mistrust |
| (verb) imagine to be the case or true or probable | Synonyms: surmise |
| (verb) hold in suspicion; believe to be guilty | - |
| suspected | (adjective) believed likely | - |
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| suspend | (verb) stop a process or a habit by imposing a freeze on it | Synonyms: freeze |
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| (verb) cause to be held in suspension in a fluid | - |
| (verb) make inoperative or stop | Synonyms: set aside |
| (verb) hang freely | - |
| (verb) bar temporarily; from school, office, etc. | Synonyms: debar |
| (verb) render temporarily ineffective | - |
| suspended | (adjective) (of undissolved particles in a fluid) supported or kept from sinking or falling by buoyancy and without apparent attachment | - |
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