The word promulgators 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™ Play In The Letters promulgators
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Seven Letter Word Alert: (39 words)
amorous, apologs, armours, galoots, galtrop, glamour, logouts, mortals, mortars, morulas, ooplasm, ooplast, orators, outraps, outroar, outsoar, outspar, parlors, parlour, parrots, patrols, poromas, portals, program, prologs, prosoma, protura, ragouts, raptors, rostral, rostrum, rugrats, stromal, taproom, torpors, turgors, uproars, uproots, urogram