The word crenelating 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: 19
Highest Scoring Words With Friends™ Play In The Letters crenelating
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Seven Letter Word Alert: (83 words)
aligner, ancient, angelic, antigen, arenite, article, cannier, canteen, canting, carting, catenin, central, certain, cleaner, clinger, craning, crating, earning, elating, elegaic, elegant, elegiac, enlarge, enteral, enteric, enticer, entrain, eternal, gelatin, general, generic, genetic, genital, gentian, gentile, gentler, glacier, glancer, gleaner, gracile, granite, grantee, greaten, ingrate, integer, lancing, lantern, latrine, leaning, learing, lectern, leering, lenient, lineage, lineate, nearing, neglect, nitrene, ranting, ratline, reagent, realign, recital, reclang, reclean, recline, reeling, reenact, regnant, reliant, renting, retinal, ringlet, tagline, tangier, tearing, tingler, tracing, trainee, treacle, treeing, trenail, triaene