The word daguerreotype 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
Seven Letter Word Alert: (71 words)
adepter, adopter, deterge, drapery, eagerer, eardrop, epurate, erupted, eyedrop, goateed, grayout, greater, greeted, greeter, grouped, grouper, grouted, grouter, gruyere, guarder, gyrated, gyrator, operate, outdare, outdrag, outpray, outrage, outread, peerage, petered, portage, portray, praetor, predate, prodrug, prorate, protege, protura, prouder, prudery, rapture, readopt, readout, reargue, redrape, redtape, regrade, regrate, regreet, regroup, regrout, repaged, repayed, reputed, reraped, reroute, retaped, retrade, retread, retreed, retyped, reurged, tapered, taperer, tragedy, treader, trouped, trouper, updater, upgrade, uprated