The word amortisations 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: 17
Highest Scoring Words With Friends™ Plays In The Letters amortisations
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Seven Letter Word Alert: (55 words)
airmass, amritas, animist, artisan, artists, artsman, atonias, attains, instars, intorts, mantras, marinas, maroons, martian, martini, martins, matrons, mission, missort, mitosis, monitor, motions, notator, notists, oarsman, oration, ottoman, raisins, ransoms, rations, rattons, rattoon, risotto, simians, somonis, sonatas, stamina, statins, station, statism, stomata, strains, straint, straits, stratas, stroams, taoists, tartans, tomatos, torsion, transit, tritoma, tsarina, tsarism, tsarist