The word profiteering 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™ Play In The Letters profiteering
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Seven Letter Word Alert: (42 words)
egotrip, feigner, ferrite, fierier, firepit, firepot, firring, foreign, freeing, fringer, igniter, ignitor, inepter, inerter, integer, niftier, oftener, peering, petifog, pinfire, pioneer, pointer, porting, prefire, prenote, printer, protege, protein, reefing, refiner, reforge, reifier, reigner, reinter, repiner, repoint, reprint, rifting, rioting, terpine, tiering, treeing