The word piezometers 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: 26
Highest Scoring Words With Friends™ Play In The Letters piezometers
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Seven Letter Word Alert: (44 words)
eeriest, emoters, empires, emptier, empties, epimers, episome, epitome, erotise, erotize, imports, imposer, isomere, meeters, meteors, metrise, metrize, moister, mopiest, mortise, permits, poetise, poetize, preemie, premeet, premise, primost, promise, reemits, remeets, remotes, reseize, respite, retimes, ropiest, seepier, steeper, stomper, teemers, tempers, tempore, toprims, zeroise, zestier