The word conditionally 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 conditionally
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Seven Letter Word Alert: (32 words)
acidity, acyloin, alditol, anionic, anodont, antlion, cannily, cannoli, cannolo, codilla, colloid, conidia, contain, coolant, cotidal, cyanoid, dicotyl, diction, idyllic, indolyl, lanolin, nanodot, nonacid, nonclay, noncola, nonoily, noonday, oolitic, talonid, tidally, tinnily, tonally