The word shareowners 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: 17
Highest Scoring Words With Friends™ Play In The Letters shareowners
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Seven Letter Word Alert: (40 words)
answers, arsheen, earners, ensears, erasers, harness, harrows, hearers, hearses, hoarser, narrows, nowhere, rashers, rawness, rearose, reasons, rehears, rehones, reshare, reshoes, reshore, reshown, reshows, reswear, reswore, seaworn, sharers, shearer, showers, snarers, snorers, soarers, swasher, swearer, warners, washers, wearers, whereas, whereon, worsens