The word authenticator 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™ Play In The Letters authenticator
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Seven Letter Word Alert: (73 words)
aconite, actuate, another, archean, arcuate, attache, attract, attrite, auction, autarch, autocar, carinae, cattier, caution, centaur, certain, chainer, chanter, chariot, chateau, chatter, citator, cithern, citrate, cittern, cornett, counter, curtain, cutrate, enactor, erotica, etchant, haircut, hairnet, haricot, haunter, inreach, nattier, nautica, nictate, nitrate, notcher, nuttier, otarine, outearn, outhire, outrace, outrant, outrate, rainhat, rainout, ratchet, rechain, recount, retouch, ricotta, routine, tantric, tattier, taunter, teacart, tetanic, thorite, titrate, toucher, trachea, tranche, trounce, unchair, uncrate, unearth, unteach, urinate