The word commentating 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: 25
Highest Scoring Words With Friends™ Play In The Letters commentating
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Seven Letter Word Alert: (43 words)
aconite, ammonic, ancient, antigen, atoning, canting, catenin, catmint, catogen, catting, coating, cognate, coinage, comment, contain, content, cottage, emoting, gametic, genomic, gentian, magneto, matting, meaning, megaton, mention, mintage, mitogen, moaning, moating, montage, montane, nematic, netting, nictate, nongame, nonmate, nonmeat, tangent, teaming, tenting, tetanic, tonnage