The word tricentennial 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: 20
Highest Scoring Words With Friends™ Plays In The Letters tricentennial
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Seven Letter Word Alert: (64 words)
airline, ancient, aniline, arenite, article, cannier, canteen, catenin, cattier, central, certain, ciliate, citrate, citrine, cittern, clatter, cleaner, clitter, enteral, enteric, enticer, entitle, entrain, entrant, entreat, eternal, inciter, incline, inertia, iterate, lantern, latrine, lattice, lectern, lenient, lineate, lintier, nattier, nictate, nitrate, nitrene, nitrite, nittier, ratline, recital, reclean, recline, reenact, reliant, retinal, retitle, tactile, tantric, tentier, ternate, tertial, tetanic, tinnier, tintier, titanic, trainee, treacle, trenail, triaene