The word compromisers 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: 24
Highest Scoring Words With Friends™ Plays In The Letters compromisers
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Seven Letter Word Alert: (35 words)
compose, copiers, corpses, cosmism, crimper, crisper, crosier, crosser, imposer, imposes, impress, isomers, memoirs, mossier, oosperm, poroses, porosis, premiss, pricers, primers, process, promise, recross, resorps, rompers, roomers, roomier, scooper, scorers, scorpio, scrimps, simmers, simpers, spermic, spicers