The word interlopes 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: 15
Highest Scoring Words With Friends™ Play In The Letters interlopes
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Seven Letter Word Alert: (70 words)
elopers, entries, epistle, epsilon, erotise, estriol, estrone, inepter, lenites, leptons, lionets, loiters, norites, nostril, onestep, openers, openest, orients, pelites, pelters, penlite, pentose, peonies, perlite, petiole, petrels, petrols, pioneer, pleions, poetise, pointer, politer, postern, poteens, prenote, present, proline, pronest, protein, pterins, relents, relines, reopens, repents, repiles, repilot, repines, replies, replots, repoint, reptile, respelt, respite, resplit, retiles, retinol, ropiest, roselet, serpent, spoiler, sterile, stonier, tensile, terpine, toilers, topline, trienes, triones, triples, tripole