The word searchlight 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: 21
Highest Scoring Words With Friends™ Play In The Letters searchlight
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Seven Letter Word Alert: (72 words)
achiest, aiglets, aigrets, aitches, alethic, alights, alright, archlet, article, cagiest, cartels, cashier, castile, chalets, charges, chaster, cherish, cithers, clarets, clasher, cristae, eclairs, eighths, elastic, ethical, gaiters, garlics, gastric, gathers, glacier, glister, gracile, gristle, haglets, halites, halters, hastier, hatches, healths, hearths, heights, highest, hitcher, hitches, laciest, larches, largest, largish, latches, lathers, ligates, lighter, raciest, realist, recital, relight, resight, retails, richest, saltier, satchel, scalier, scarlet, shalier, sighter, slather, slatier, sleight, slither, stagier, thearch, triages