The word numberplate 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: 23
Highest Scoring Words With Friends™ Plays In The Letters numberplate
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Seven Letter Word Alert: (49 words)
abluent, albumen, amputee, beamlet, beermat, bleater, blunter, brumate, empanel, emplane, emulant, emulate, enabler, enteral, epaulet, epurate, eternal, mutable, nebulae, nebular, neutral, numeral, nutmeal, permute, planter, pleurae, plumber, prelate, premelt, putamen, reblame, reblent, repanel, replane, replant, replate, repleat, replumb, tapemen, tempera, tempura, tenable, trample, tremble, tumbler, tunable, umpteen, unalert, unalter