The word conservancies 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: 25
Highest Scoring Words With Friends™ Play In The Letters conservancies
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Seven Letter Word Alert: (90 words)
acerose, ancress, arcsine, arsenic, caisson, cancers, canines, cannier, canoers, canonic, careens, carnies, carvone, caseins, casinos, caverns, censers, censors, cerises, cession, ciscoes, coarsen, cocaine, coerces, coiners, concave, concern, concise, connive, convene, corneas, cornice, cosines, covines, creases, crevice, cronies, eccrine, encases, encores, ensears, ensnare, enviers, environ, erosive, evasion, evinces, incense, insaner, inverse, necrose, noseans, novices, oceanic, oneness, ovaries, oversea, ravines, reasons, recanes, recoins, resaves, rescans, revises, revoice, saviors, scanner, scarves, science, sconces, scoriac, scoriae, scorias, screens, seances, secerns, seniors, service, siennas, sincere, sinners, soccers, soirees, vaccine, varices, venison, versine, version, viscera, voicers