The word semitransparency cannot be made in Words With Friends™. It is 16 letters long, too long to fit on a WordsWithFriends board (15 letters max).
Highest Scoring Words With Friends™ Plays In The Letters semitransparency
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Seven Letter Word Alert: (559 words)
acaters, acatery, acerate, actress, aerates, aeriest, airmass, amenity, amentia, amercer, amerces, amnesia, amnesic, amnesty, amperes, amritas, anaemic, ananyms, anapest, anaptic, ancient, ancress, animacy, animate, antsier, anytime, aptamer, apteria, aptness, arcsine, arctans, arenite, ariarys, armpits, armrest, arrests, arsenic, artisan, artsier, artsman, artsmen, ascents, ascites, aseptic, aspects, asperse, aspirer, aspires, assayer, atresia, cameras, campers, campier, canapes, canines, cannery, cannier, canteen, canters, cantrap, cantrip, capstan, captain, careens, careers, carinae, carmine, carnies, carpers, carpets, carries, carters, caseate, caseins, casspir, casters, catenin, caterer, catnaps, catnips, cayenne, cements, censers, centers, centres, cerates, cerises, certain, cesspit, cinemas, cistern, crasser, craters, creamer, creaser, creases, creates, cremate, cresset, cretins, crimper, crispen, crisper, cristae, cyanate, cyanine, cyanins, cyanise, cyanite, cypress, cystine, earners, earnest, easiest, eastern, ecstasy, ectypes, emacity, emanate, emetics, eminent, emirate, empires, empress, emptier, empties, enamine, encamps, encases, encrypt, encysts, ensears, ensnare, enteric, enticer, entices, entrain, entraps, entries, epicyte, epimers, erasers, errants, erratic, escaper, escapes, escarps, essayer, eyepits, icemans, icemass, icespar, icetray, impacts, imparts, impasse, impress, incants, incense, incests, inepter, inerter, inmates, insaner, inscape, inseams, insects, inserts, inspect, instars, insteps, intense, interns, manatee, maniacs, manners, mantrap, mantras, marinas, mariner, marines, marries, martens, martian, martins, martyrs, masters, mastery, matinee, meanest, meanies, meatier, meatpie, menaces, mercers, mercies, messier, metrics, metrise, minaret, mincers, minters, miscast, mispays, mispens, misseat, misstep, misters, mistype, miterer, mystics, naptime, narrate, nascent, nastier, nearest, neatens, nectars, nectary, nematic, nemesis, nesters, nitrene, paceman, pacemen, painter, pansies, panters, panties, parents, paresis, parsecs, parsers, parties, partner, pasters, pastier, pasties, pastime, patinae, patinas, patines, payment, peasant, peatier, pectens, pectins, pemican, penance, pencase, penises, penname, penners, pennies, pentane, pentyne, percent, permits, persist, pertain, pessary, pesters, picante, picrate, piercer, pierces, pincers, pinenes, pinnate, pirates, praiser, praises, prancer, prances, praters, prayers, prearms, precast, precent, precise, premier, premise, premiss, prerace, present, presets, presser, presync, pretans, preterm, pricers, priests, primacy, primary, primase, primate, primers, princes, printer, pterins, pyaemia, pyaemic, pyemias, pyrites, racemes, raciest, racisms, racists, raiment, raisers, rampant, rampart, ranters, rapists, raspers, raspier, rasters, ratrace, reamers, reapers, rearise, reassay, recanes, recants, recasts, receipt, recipes, reciter, recites, recrate, reemits, reenact, reentry, reinter, remains, remates, remines, remints, remnant, renames, renests, rennets, renters, repaces, repaint, repairs, reparse, repaste, repasts, repeats, repents, repiner, repines, reprays, repress, reprice, reprime, reprint, reprise, rerapes, rerents, rerinse, rescans, reseats, resects, resents, resnaps, respace, respans, respect, respice, respins, respire, respite, respray, restain, restamp, restems, resteps, resters, restirs, restrap, retains, retapes, reteams, retears, retimer, retimes, retinas, retires, retrace, retrain, retraps, retries, retrims, retypes, rinsers, sarapes, sarcasm, satanic, sateens, satires, satraps, satrapy, scamper, scanner, scanter, scarers, scarier, scenery, scenter, scepter, sceptre, scraper, scrapes, screams, screamy, screens, screeny, scrimps, scrimpy, scripts, scryers, seamers, seamier, seances, searats, seastar, seaters, secants, secerns, secrets, seitans, seitens, seminar, senates, sensate, septics, serapes, seriate, seriema, serpent, serrate, sestina, sestine, siamese, siemens, siennas, sierras, simpers, sincere, sinners, sinters, sirname, smarten, smarter, smartie, smearer, smiters, snarers, snipers, spacers, spacier, spanner, sparers, sparest, sparser, spartan, spasmic, spastic, spearer, species, specter, spectra, spectre, spermic, spicate, spicers, spicery, spinets, spinner, spinnet, spinney, spiraea, spireas, sprains, sprayer, spriest, sprints, sprites, spryest, stainer, stamens, stamina, stamper, stances, stannic, starers, stayers, steamer, sterane, sterner, strains, strayer, streams, streamy, striper, stripes, stripey, stymies, styrene, syenite, synapse, syntans, tampers, tanners, tannery, tapeman, tapemen, taperer, tarmacs, tarpans, tarries, tearers, tearier, teasers, tempera, tempers, tenancy, tenners, tenpins, ternary, terpine, terrace, terrain, terrane, tinners, tracers, tracery, trainee, trainer, traipse, tramcar, tramper, trances, trepans, triaene, triceps, trienes, trimers, trireme, triynes, trypsin, tsarina, tsarism, tympani, yearner, yestern, yperite