The word surveillance 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: 23
Highest Scoring Words With Friends™ Play In The Letters surveillance
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Seven Letter Word Alert: (99 words)
aircell, allures, arcsine, arillus, arsenic, auricle, avenues, callers, careens, carnies, cauline, caverns, caviler, cellars, censure, cereals, clavier, cleaner, cleanse, cleaver, cleaves, cureall, curials, cursive, eclairs, elusive, eluvial, enclave, enslave, enviers, euclase, eviller, evinces, incurve, insular, inulase, inverse, lancers, laurels, laveers, leaners, leavens, leavers, leisure, leucine, license, nailers, nuclear, rallies, ravines, realise, recalls, recanes, reclean, recline, recluse, recusal, relaces, relines, relives, renails, rescale, reslice, revalue, reveals, reviles, revulse, saucier, scalene, scalier, sclerae, scleral, secular, service, servile, several, silence, sincere, sluicer, surveil, unclear, unlaces, unravel, unreels, unveils, uricase, urinals, valence, valuers, varices, veilers, veinule, velaric, veneral, venules, versine, vesical, vesicle, viscera