The word tacheometers 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: 20
Highest Scoring Words With Friends™ Plays In The Letters tacheometers
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Seven Letter Word Alert: (85 words)
acerose, amerces, cerates, chaster, chatter, cheater, chromes, coaster, coheres, costate, cotters, creates, cremate, earshot, echoers, emoters, etchers, hamster, hatters, heaters, hectare, heteros, machete, maestro, marches, matcher, matches, matters, meeters, meteors, mothers, octamer, racemes, ratchet, reaches, recheat, rechose, recoats, reheats, rehomes, rematch, remates, remeets, remotes, restate, retaste, retches, reteach, reteams, retoast, roaches, roseate, rosette, rotates, scatter, schemer, secrete, seether, shatter, sheeter, smatter, smother, steamer, stomach, stomate, stretch, teacher, teaches, teemers, teeters, teether, teethes, tethers, theater, theatre, theorem, thereat, thereto, thermos, threats, throats, toaster, tomcats, torches, trochee