The word conventionally 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: 28
Highest Scoring Words With Friends™ Play In The Letters conventionally
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Seven Letter Word Alert: (55 words)
acolyte, aconite, acyloin, aloetic, alveoli, ancient, antlion, cannily, cannoli, cannolo, catenin, cleanly, coalite, collate, colonel, connive, connote, contain, convent, coolant, cotylae, cyanine, cyanite, elation, inanely, inocyte, lactone, lanolin, latency, lection, naively, naivety, nonclay, noncola, nonevil, nonlate, nonlove, nonoily, novella, novelty, ovately, ovation, ovicell, ovinely, ovocyte, tenancy, toenail, tonally, valency, violate, violent, vitally, vocally, volcano, voltaic