The word capturers 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: 16
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (23 words)
capture, carpers, carpets, carters, cauters, craters, curates, cuspate, pasture, praters, precast, precuts, rapture, restrap, retraps, scraper, spectra, sprucer, spurter, teacups, tracers, uprates, uprears