The word lamentations 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: 18
Highest Scoring Words With Friends™ Play In The Letters lamentations
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Seven Letter Word Alert: (76 words)
aeolian, ailment, alanine, aliment, altoist, amentia, amnesia, amnions, animals, animate, animose, anneals, anoints, antlion, atomise, atonias, attains, elastin, elation, entails, inmates, instant, instate, intents, intones, isolate, laments, laminae, laminas, latents, latites, leantos, lineman, linnets, lionets, malaise, maltose, mansion, mantels, mantles, melanin, mention, mittens, moisten, montane, mottles, nailset, nations, netmail, nominal, nonlate, nonmail, nonmale, nonmate, nonmeal, nonmeat, nonsale, oatmeal, salient, saltate, satiate, sealant, sealion, seminal, smitten, stamina, station, stomata, stomate, talents, tamales, tannest, tenants, tension, toenail, toilets