The word sportsmanship 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: 25
Highest Scoring Words With Friends™ Play In The Letters sportsmanship
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Seven Letter Word Alert: (49 words)
amorphs, appoint, armpits, arshins, assorts, harpist, hatpins, imparts, impasto, imports, instars, martins, matrons, mishaps, missort, orphans, parsnip, parsons, passion, pastors, patrons, phantom, pisspot, pistons, postman, primost, prisons, prompts, propman, ransoms, rapists, raspish, rations, ripstop, shipman, shopman, shrimps, siphons, sophtas, sprains, sprints, stonish, strains, stroams, tampons, tarnish, toprims, topspin, tsarism