The word interpretive 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™ Plays In The Letters interpretive
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Seven Letter Word Alert: (29 words)
enterer, inepter, inerter, invitee, inviter, nervier, nitrite, nittier, pervert, pettier, preener, preteen, prevent, printer, reenter, reinter, renerve, repiner, reprint, retiree, reverie, riveter, teenier, tentier, terpene, terpine, tintier, veinier, vitrine