The word accoutrement 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™ Play In The Letters accoutrement
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Seven Letter Word Alert: (38 words)
account, accrete, acetone, centaur, cerumen, concert, contact, cornett, counter, cremate, cuneate, curette, cutrate, enactor, enamour, entreat, mounter, neuroma, nutmeat, octamer, outearn, outmate, outrace, outrant, outrate, recount, reenact, remount, romance, tantrum, taunter, ternate, tonearm, torment, trounce, tutoree, uncrate, unerect