The word salesmanship 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 salesmanship
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Seven Letter Word Alert: (57 words)
aimless, aliases, alpines, amasses, amnesia, animals, asepsis, ashless, assails, haemins, hapless, hassles, hipness, impalas, impales, impanel, impasse, inhales, inseams, laminae, laminas, lassies, lipases, malaise, manless, mapless, messiah, mishaps, mispens, misplan, missals, napalms, napless, palsies, pansies, pinless, plashes, plasmas, plasmin, salamis, salines, samples, saphena, sapless, seminal, shamans, shipman, shipmen, silanes, simples, sinless, slashes, smashes, spaniel, spinals, spinels, splines