The word occurrents 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 occurrents
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Seven Letter Word Alert: (24 words)
concert, concurs, corners, cornets, correct, counter, courser, current, encrust, recount, rectors, reoccur, retours, returns, routers, scorner, scourer, scouter, snorter, tonsure, tourers, trounce, trouser, turners