The word nightwears 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: 18
Highest Scoring Words With Friends™ Play In The Letters nightwears
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Seven Letter Word Alert: (73 words)
aigrets, anthers, antsier, argents, arshine, earwigs, erasing, gainers, gaiters, garnets, garnish, gastrin, gathers, gnasher, gnawers, granite, hairnet, hangers, hastier, hearing, heating, hernias, ingrate, nastier, ratings, regains, rehangs, resight, restain, resting, retains, rethaws, retinas, searing, seating, sharing, shewing, sighter, stagier, stainer, staring, stewing, stinger, strange, tangier, tarnish, tawnier, tearing, teasing, thawing, tinware, triages, twanger, twiners, twinges, waiters, wanters, wariest, washing, wasting, wearing, wearish, weights, whiners, whinger, whinges, whitens, wingers, winters, withers, wraiths, wreaths, writhes