The word steeplechases 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 steeplechases
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Seven Letter Word Alert: (52 words)
asepses, ashless, aspects, capless, caplets, castles, chalets, chapels, chaplet, cheeses, chelate, clashes, classes, elapses, electee, escapee, escapes, hapless, hassles, hatless, heeltap, latches, leaches, leashes, leeches, lessees, pastels, patches, peaches, pestles, petless, pheeses, plashes, pleases, sachets, sacless, sapless, satchel, scathes, schleps, seethes, selects, slashes, splatch, staples, stashes, steeple, tassels, teaches, tealess, teasels, teepees