The word discotheque 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: 27
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (31 words)
cestode, cheques, chested, choused, coedits, coesite, deceits, dehisce, diocese, ditches, docquet, douches, duchies, eudicot, heisted, hideous, hideout, hoisted, outside, quested, quiched, quiches, quiesce, quieted, quotees, scouted, shouted, techies, tedious, touched, touches