The word hyperthermies 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™ Plays In The Letters hyperthermies
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Seven Letter Word Alert: (54 words)
eeriest, empires, emptier, empties, epimers, eyepits, hermits, meeters, meshier, metrise, mistype, miterer, permits, phisher, preemie, premeet, premier, premise, preterm, primers, pyrites, reemits, rehires, remeets, reprime, reprise, respire, respite, retimer, retimes, retiree, retires, retrees, retries, retrims, retypes, rhymers, rhymist, rhythms, seepier, seether, sheerer, sheeter, shrimpy, steeper, steerer, striper, stripey, teemers, tempers, thymier, trimers, trireme, yperite