The word depositor 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: 13
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (35 words)
deports, deposit, diopter, dioptre, disroot, dopiest, editors, isotope, optrode, osteoid, peridot, periods, poorest, posited, roisted, roosted, ropiest, sootier, sortied, spirted, spoored, sported, steroid, stooped, stooper, storied, striped, tierods, topside, toroids, torpedo, torpids, tripeds, tripods, trooped