The word ceremonially 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: 23
Highest Scoring Words With Friends™ Play In The Letters ceremonially
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Seven Letter Word Alert: (50 words)
acronym, acyloin, aileron, aircell, alimony, allonym, almoner, amylene, anymore, calomel, calorie, carmine, claimer, clarion, clayier, cleaner, cleanly, clearly, coalier, coalmen, collier, corneal, cornily, incomer, inlayer, larceny, loamier, loyaler, lyrical, manlier, marconi, mealier, micella, micelle, mineral, miocene, miracle, moraine, morally, mycelia, myeline, myeloic, ocellar, reclaim, reclean, recline, reclone, romaine, romance, yealmer