The word countersigned 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™ Plays In The Letters countersigned
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Seven Letter Word Alert: (303 words)
cenotes, censure, centers, centred, centres, ceroids, cestode, cinders, cistern, citrons, codeine, codgers, codings, coedits, coesite, cognise, coiners, condign, conduit, congest, consent, consign, contend, cording, coreign, cornets, corning, costing, coterie, counted, counter, coursed, courted, credits, crested, cretins, cringed, cringes, cronies, crudest, cruised, crunode, crusted, cursing, deceits, decries, decrust, deicers, dengues, deniers, denoise, denotes, dentine, denting, dentins, denture, descent, destine, detinue, detours, detuner, detunes, diester, dieters, dinners, diocese, directs, discern, dousing, droning, ducting, ductors, dungeon, dunites, dustier, dusting, edgiest, editors, educing, eductor, encoder, encodes, encored, encores, encrust, endings, endnote, endogen, endorse, endures, engined, engines, ensuing, ensuite, ensured, enteric, enticed, enticer, entices, entries, eroding, erotics, erotise, eructed, erudite, estrone, eudicot, eugenic, genders, generic, genetic, genuine, gesture, gnostic, godsent, goiters, goitres, goriest, gourdes, goutier, greisen, grinned, groined, grounds, groused, grouted, grunted, guerdon, guested, gunners, gunters, gustier, gutsier, igneous, ignored, ignores, incense, incrust, indents, indorse, inducer, induces, inducts, insured, integer, intends, intense, interns, intoned, intoner, intones, introns, intrude, inturns, inuendo, ioduret, necrose, needing, negroes, negroid, nesting, neurons, neuters, neutron, nitrene, nitrous, noncute, nondiet, nondrug, nonsuit, nonuser, nordics, norites, noticed, notices, nursing, nutseed, nutsier, octenes, orients, ousting, outgrin, outings, outride, outside, recited, recites, recodes, recoins, recount, recused, redoing, reduces, reducts, reedits, regents, regions, reguide, reigned, rending, rennets, renting, rescind, rescued, residue, resound, resting, retuned, retunes, reunion, reunite, reusing, rodents, roisted, rosined, rotunds, rousing, routine, routing, rudites, rusting, scented, scenter, scoring, scorned, scoured, scourge, scouted, scouter, scrouge, section, secured, sedgier, seducer, seeding, sending, sincere, snoring, snorted, snouted, sortied, sorting, sounder, sourced, souring, sterned, steroid, stinger, stonier, stoning, storied, storing, stourie, studier, stunned, stunner, suction, sunnier, surgeon, tedious, tenders, tending, tendons, tenners, tensing, tension, tenured, tenures, tierods, tinders, tinners, tongued, tongues, tonsure, touring, treeing, trienes, triones, trounce, trudgen, trudges, tunings, turning, uncited, uncords, uncored, unction, undents, undergo, undines, undoers, undoing, undrest, unerect, unicorn, uniters, unnoted, unreset, unrisen, unstoic, untired, untried, uterine