The word collaborates 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™ Play In The Letters collaborates
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Seven Letter Word Alert: (88 words)
abaters, abators, ablates, ablator, abreact, abreast, acaters, acrobat, actable, aerosol, alecost, allstar, arblast, areolas, ballast, ballets, ballots, blaster, bloater, boaster, boaters, boleros, bolster, bolters, booster, booters, borates, cabaret, cablers, caboose, callers, callose, cartels, cellars, clarets, coalers, coaltar, coastal, coaster, cobalts, collars, collate, colters, coolers, coolest, corolla, creosol, escolar, lactase, lacteal, lactose, lateral, lobster, locales, locates, locator, looters, losable, ocellar, ocelots, october, oracles, reallot, reblast, reboast, reboost, reboots, recalls, recoals, recoats, retools, rosacea, roseola, salable, scarlet, scleral, scooter, scrotal, seaboot, solacer, sorbate, stabler, stellar, tabasco, tarball, tollers, toolbar, toolers