The word tangerines 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: 14
Highest Scoring Words With Friends™ Play In The Letters tangerines
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Seven Letter Word Alert: (72 words)
aeriest, aigrets, antigen, antsier, arenite, argents, earnest, earning, eastern, engines, enrages, ensnare, entrain, entries, erasing, gainers, gaiters, garnets, gastrin, gearset, gentian, granite, grantee, greaten, greisen, ingrate, insaner, integer, intense, interns, nastier, nearest, nearing, neatens, negates, nesting, nitrene, ranting, ratings, reagent, regains, regents, regnant, rennets, renting, restage, restain, resting, retains, retinas, searing, seating, seriate, snaring, stagier, stainer, staring, sterane, stinger, strange, tangier, tanners, tearing, teasing, tenners, tensing, tinners, trainee, treeing, triaene, triages, trienes