The word hypsometers 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: 21
Highest Scoring Words With Friends™ Plays In The Letters hypsometers
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Seven Letter Word Alert: (39 words)
emoters, empress, eophyte, eyeshot, eyespot, heptose, heteros, meshers, meteors, mossery, mothers, ospreys, oysters, pesters, poetess, posters, pothers, presets, rehomes, remotes, reposes, reposts, reshoes, respots, restems, resteps, retypes, shyster, smother, spheres, spryest, stereos, stomper, storeys, strophe, tempers, tempore, theorem, thermos