The word pathogenesis 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: 20
Highest Scoring Words With Friends™ Play In The Letters pathogenesis
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Seven Letter Word Alert: (94 words)
agonies, agonise, agonist, apogees, aptness, ashiest, atheise, easiest, egoists, ethanes, geishas, genesis, gnashes, goatees, goatish, hastens, hatpins, heaping, heating, heptane, heptose, hessite, hipness, histone, hoagies, hogties, hosting, hotness, ingests, insteps, iphones, negates, nosiest, onestep, onstage, openest, opiates, pansies, panties, passing, passion, pasties, pasting, patines, penises, pentose, peonies, phasing, phenate, phonies, pigeons, pingoes, pistons, poesies, poetess, poetise, postage, posting, potages, poteens, potheen, sagiest, sashing, sateens, seahogs, seating, seeping, seitans, seitens, senates, sensate, sestina, sestine, shaping, shoeing, signees, signets, siphons, soaping, sophtas, sphenes, spigots, spinets, spinose, sponges, stenose, stepson, stogies, stonish, tapings, teashop, teasing, thiones, tossing