The word candelabrum 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: 24
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (46 words)
adrenal, alarmed, albumen, alumnae, arcanum, armband, balance, banaler, blander, blunder, caldera, candela, candler, canulae, canular, caramel, clamber, crabman, crumbed, crumble, curable, decrumb, decuman, durable, lacunae, launder, leadman, macabre, macular, manacle, mandrel, manured, marbled, nebular, nuclear, numeral, radulae, rambled, rumbaed, rumbled, unarmed, unbaled, unbrace, uncared, unclear, unlaced