The word exuberating 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: 25
Highest Scoring Words With Friends™ Play In The Letters exuberating
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Seven Letter Word Alert: (30 words)
arenite, bauxite, bearing, beating, beguine, beignet, bruxing, exigent, gaunter, granite, grantee, greaten, ingrate, integer, reagent, rebegan, rebegin, rebegun, reunite, tabuing, tangier, tearing, trainee, treeing, triaene, tribune, turbine, uneager, urinate, uterine