The word confirmable 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™ Plays In The Letters confirmable
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Seven Letter Word Alert: (52 words)
aerobic, aileron, almoner, amoebic, balmier, bifocal, binocle, bonfire, bromine, caliber, calibre, calorie, carbine, carmine, claimer, clamber, clarion, climber, coalbin, coalier, coalmen, combine, comfier, confirm, conifer, corneal, embolic, embroil, fancier, femoral, fermion, fibroma, fireman, foamier, foramen, foreman, friable, incomer, inflame, loamier, lobefin, manlier, marconi, microbe, mineral, miracle, moraine, nimbler, reclaim, reclimb, romaine, romance