The word steelmakers 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: 19
Highest Scoring Words With Friends™ Play In The Letters steelmakers
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Seven Letter Word Alert: (57 words)
armless, armlets, artless, earless, elaters, emerses, esteems, kestrel, leakers, leasers, markets, maskers, masters, measles, meekest, meerkat, meeters, melters, realest, relates, release, remakes, remates, remeets, remelts, resales, reseals, reseats, reseeks, resmelt, restake, restems, retakes, retasks, reteams, sealers, seamers, seaters, seekers, skaters, skelter, slaters, sleeker, smelter, stalker, stealer, steamer, streaks, streams, talkees, talkers, taskers, tealess, teasels, teasers, teemers, tramels