The word meetinghouses 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: 22
Highest Scoring Words With Friends™ Play In The Letters meetinghouses
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Seven Letter Word Alert: (82 words)
egoisms, egoists, egotism, emoting, enemies, ensuite, enthuse, esteems, ethenes, geneses, genesis, genomes, genuses, gnomish, gnomist, gothism, gumshoe, gunshot, hegemon, heinous, hessite, histone, hogties, homiest, hosting, hotness, housing, humites, husting, igneous, ingests, inhouse, isthmus, meeting, meioses, meshing, messing, minuets, minuses, minutes, mistune, mitogen, mitoses, moisten, mossing, mountie, mousing, mugshot, munites, mushing, musings, nemesis, nosiest, nutmegs, onetime, ousting, outings, outsees, seeming, seethes, segment, seitens, sestine, shoeing, shoguns, shotgun, shutins, siemens, signees, signets, somites, stenose, stogies, stomies, stonish, teeming, theisms, thiones, tongues, tossing, toughen, toughie