The word typewriters 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: 19
Highest Scoring Words With Friends™ Play In The Letters typewriters
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Seven Letter Word Alert: (31 words)
eyepits, petites, pettier, pewters, pretest, prewire, pyrites, reprise, respire, respite, reswept, retires, retries, retwist, retypes, rewipes, rewires, rewrite, spewier, striper, stripey, testier, tipster, tryster, twister, typeset, wetters, witters, wrester, writers, yperite