The word warmongering 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™ Play In The Letters warmongering
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Seven Letter Word Alert: (52 words)
angrier, armoire, earning, earring, gearing, gnawing, gowning, grainer, grinner, groaner, growing, ingrown, ironage, ironman, mangier, mariner, marring, meaning, meowing, merging, moaning, moraine, morning, nearing, nonamer, nongame, oranger, raggier, ragworm, rangier, ranging, reaming, rearing, regrown, ringman, ringmen, roaming, roaning, roaring, romaine, warming, warning, warring, weaning, wearing, wingman, wingmen, wireman, wormier, worming, wringer, wronger