The word egocentrism 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
Seven Letter Word Alert: (97 words)
cements, cenotes, centers, centres, cistern, citrons, coesite, cognise, coiners, comings, congest, coreign, cornets, costing, coterie, cretins, crimson, cringes, cronies, egotism, emetics, emoters, emoting, encores, enteric, enticer, entices, entries, erotics, erotise, estrone, generic, genetic, genomes, genomic, gnomist, gnostic, goiters, goitres, goriest, greisen, ignores, incomer, incomes, integer, isomere, meeting, mentors, mercies, meronts, meteors, metrics, metrise, microns, mincers, minters, miocene, mitogen, moisten, moister, mongers, monster, mortise, necrose, negroes, norites, notices, octenes, onetime, orients, recites, recoins, reemits, regents, regimen, regimes, regions, remiges, remines, remints, remotes, resting, retimes, scenter, scoring, section, seeming, segment, sincere, sorting, stinger, stonier, storing, teeming, treeing, trienes, triones