The word monopolisations 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 monopolisations
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Seven Letter Word Alert: (67 words)
amnions, animist, anoints, antlion, impasto, implant, isospin, lampoon, liaison, lionism, lipomas, lotions, mansion, minions, misplan, mission, mitosis, monilia, monsoon, moonlit, motions, nations, nominal, nonmail, nonslip, nonstop, notions, ooplasm, ooplast, opinion, optimal, options, palmist, passion, pianist, pinions, pinitol, pintail, pistils, pistols, pistons, plasmin, plasmon, platoon, plosion, poisons, pontoon, postils, postman, potions, salmons, saloons, saponin, simians, soloist, somonis, spinals, spinons, splints, stanols, tailpin, tampons, timpani, tonsils, toolman, topsail, topsoil