The word reinstates 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: 11
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (74 words)
aeriest, antsier, arenite, artiest, artists, attires, earnest, easiest, eastern, ensears, entreat, entries, estates, inserts, instars, instate, iratest, iterate, nastier, natters, nattier, nearest, neatest, nesters, netters, nitrate, renests, reseats, resents, restain, restate, retains, retaste, retests, retinas, retints, sateens, satires, seaters, seitans, seitens, senates, sensate, seriate, sestina, sestine, setters, sinters, sitters, stainer, staters, statins, sterane, strains, straint, straits, streets, striate, tasters, tastier, teasers, tensest, tenters, tentier, ternate, tersest, testers, testier, tinters, trainee, transit, triaene, trienes, tsarist