The word receptacles is playable in Words With Friends™, no blanks required. Because it is longer than 7 letters, you would have to play off an existing word or do it in several moves.
Words With Friends™ Letter Score: 21
Highest Scoring Words With Friends™ Plays In The Letters receptacles
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Seven Letter Word Alert: (64 words)
accepts, accrete, caplets, carpels, carpets, cartels, cerates, cereals, clarets, clasper, creates, elaters, escapee, escaper, leapers, palters, parcels, peelers, pelters, petrels, placers, plaster, platers, pleaser, precast, prelate, prelect, presale, realest, reclasp, reelect, relaces, relapse, relates, release, repaces, repaste, repeals, repeats, repeels, replace, replate, repleat, replete, rescale, respace, respect, respelt, retapes, scalper, scarlet, scepter, sceptre, sclerae, secrete, sleeper, specter, spectra, spectre, stapler, stealer, steeper, steeple, treacle