The word demarcation 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: 19
Highest Scoring Words With Friends™ Plays In The Letters demarcation
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Seven Letter Word Alert: (58 words)
aconite, adenoma, airdate, amentia, amidone, anaemic, aneroid, animate, antacid, cairned, cantred, carinae, carmine, carotid, certain, coadmit, coatman, comrade, cordate, demonic, demotic, detrain, diorama, domatia, domatic, dormant, dormice, enactor, erotica, incomer, mandate, marconi, martian, matador, minaret, moraine, mordant, mordent, narcoma, nematic, nomadic, noticed, octamer, otarine, radiant, radiate, raiment, readmit, roadman, roadmen, romaine, romance, tacnode, tiaraed, tonearm, tradein, trained, tranced