The word pleximetries 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 pleximetries
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Seven Letter Word Alert: (74 words)
eeriest, elitism, elixirs, empires, emptier, empties, epimers, epistle, exempts, experts, expires, extirps, extreme, imperil, implies, itemise, lexemes, limiter, limpest, limpets, meeters, melters, metrise, mistier, peelers, pelites, pelters, perlite, permits, petrels, pieties, pietism, pitiers, preemie, prelims, premeet, premelt, premise, premixt, reemits, reexpel, remeets, remelts, remixes, repeels, repiles, replete, replies, reptile, resmelt, respelt, respite, resplit, retiles, retimes, seepier, sextile, siltier, simpler, simplex, sleeper, slimier, smelter, smilier, steelie, steeper, steeple, sterile, teemers, telexes, tempers, temples, tipsier, triples