The word detergencies 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: 19
Highest Scoring Words With Friends™ Plays In The Letters
Seven Letter Word Alert: (71 words)
centers, centred, centres, cinders, cistern, credits, crested, cretins, cringed, cringes, deceits, decenes, decrees, decries, degrees, deicers, deniers, descent, destine, deterge, diester, dieters, directs, discern, edgiest, eeriest, entered, enteric, enticed, enticer, entices, entrees, entries, erected, genders, generic, genetic, greened, greeted, greisen, integer, needers, needier, recedes, recited, recites, reedits, reested, regents, reigned, reneged, reneges, rescind, resting, scented, scenter, seceder, secrete, sedgier, seedier, seeding, sincere, sneered, steered, sterned, stinger, teenier, tenders, tinders, treeing, trienes