The word expectorant 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 expectorant
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Seven Letter Word Alert: (27 words)
acetone, context, cornett, enactor, entreat, exacter, exactor, excerpt, excreta, exocarp, extract, operant, operate, pattern, pectate, percent, portent, precent, precoat, prenote, pretext, pronate, protean, protect, reenact, ternate, treetop