The word nanometers 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: 15
Highest Scoring Words With Friends™ Play In The Letters nanometers
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Seven Letter Word Alert: (44 words)
anemone, anomers, artsmen, atoners, earnest, eastern, emoters, enamors, ensnare, estrone, maestro, manners, martens, matrons, meanest, mentors, meronts, meteors, moaners, monster, montane, nearest, neatens, neonate, nonamer, nonarts, nonmate, nonmeat, oarsmen, remates, remnant, remotes, renames, rennets, reteams, roseate, senator, smarten, steamer, sterane, tanners, tenners, tonearm, treason