The word cheatgrasses 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™ Plays In The Letters cheatgrasses
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Seven Letter Word Alert: (59 words)
acaters, acerate, acreage, actress, aerates, assarts, asserts, cartage, caseate, cashers, casters, cerates, charges, chasers, chaster, cheater, crashes, creases, creates, cresses, cresset, earache, eartags, etchers, gashers, gassers, gathers, gearset, grasses, greases, hearses, heaters, hectare, hetaera, rashest, reaches, recasts, recheat, reheats, reseats, resects, restage, retches, reteach, sachets, scathes, searats, seastar, seaters, secrets, stagers, stashes, teacher, teaches, teargas, teasers, trachea, trashes, tresses