The word doctorfishes 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: 21
Highest Scoring Words With Friends™ Plays In The Letters
Seven Letter Word Alert: (84 words)
ceroids, chooser, chooses, choroid, cithers, codfish, coedits, coheirs, cohorts, cooties, corsets, cosiest, credits, crossed, defrost, dehorts, directs, disroot, dissect, ditcher, ditches, dithers, doctors, dossier, editors, erotics, escorts, fishers, foisted, foister, footers, footsie, forests, forties, fosters, frescos, frosted, frothed, heroics, hoisted, hoofers, hosiers, hotrods, oecists, orchids, osteoid, ostrich, redfish, reshift, reshoot, resifts, rhotics, richest, rodfish, roisted, roosted, rosiest, scooted, scooter, sectors, sherifs, shifted, shifter, shirted, shooter, shorted, shrifts, sifters, softies, soothed, soother, soothes, sootier, sortied, sorties, steroid, storied, stories, strides, strifes, tierods, torched, torches, toroids