The word comportments 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 comportments
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Seven Letter Word Alert: (46 words)
comment, commons, comport, compose, compost, compote, consort, contest, contort, cornets, cornett, coronet, cotters, cottons, mentors, meronts, moments, monomer, monster, mottoes, oosperm, operons, poorest, portent, postern, postmen, potters, promote, pronest, protect, protest, protons, scooper, scooter, snooper, snotter, sporont, spotter, stepmom, stomper, stooper, tomtoms, tooters, topmost, torment, tornote