The word investigated 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 investigated
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Seven Letter Word Alert: (79 words)
advents, advisee, aniseed, attends, avenged, avenges, avidest, deaving, deities, dentate, dentist, destain, destine, detains, detents, deveins, deviant, deviate, dieties, dietine, dieting, dietist, dingies, distant, ditties, divines, divings, edgiest, editing, endives, evading, evident, evitate, eviting, gestate, ignited, ignites, indites, instate, instead, invades, invited, invitee, invites, naivest, natives, neatest, negated, negates, sainted, seating, seeding, setting, sieving, sitting, stained, standee, stating, stative, staving, stented, stinted, stiving, tainted, tasting, teasing, tentage, testing, tidiest, tidings, tiniest, vainest, vatting, vestige, vesting, vetting, vintage, visited, vitiate