The word dialectology 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: 22
Highest Scoring Words With Friends™ Play In The Letters dialectology
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Seven Letter Word Alert: (36 words)
acolyte, agilely, alcogel, alditol, alloyed, aloetic, catelog, cedilla, citadel, clodlet, coalite, codilla, codille, collage, collate, collide, colloid, cotidal, cotylae, decalog, deltaic, dialect, dicotyl, ecology, geoidal, gloated, godetia, ideally, ligated, located, logical, oldlace, tallied, tidally, tillage, tollage