The word congelation 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 congelation
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Seven Letter Word Alert: (48 words)
aconite, aloetic, ancient, angelic, antigen, antlion, atoning, cannoli, cannolo, canting, catelog, catenin, catogen, cloning, coaling, coalite, coating, cognate, coinage, cologne, congeal, connote, contain, coolant, cooling, elating, elation, gelatin, genital, gentian, ionogen, lactone, lancing, leaning, lection, loaning, looting, nanogel, noncola, nongoal, nonlate, octagon, oncogen, tagline, tangelo, toenail, tonnage, tooling