The word tenderises 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: 12
Highest Scoring Words With Friends™ Play In The Letters tenderises
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Seven Letter Word Alert: (41 words)
deniers, densest, deserts, desires, dessert, destine, diester, dieters, dissent, eeriest, entered, entrees, entries, inserts, needers, needier, nesters, redness, reedits, reested, renests, reseeds, resends, resents, resides, seeders, seedier, seitens, senders, sestine, sinters, sneered, snidest, steered, sterned, strides, teenier, tenders, tinders, tressed, trienes