The word caramelises 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: 18
Highest Scoring Words With Friends™ Play In The Letters caramelises
:
Seven Letter Word Alert: (61 words)
aerials, aimless, airless, airmass, aliases, amerces, armless, cameras, caramel, carless, cereals, cerises, claimer, creases, earless, eclairs, iceless, icemass, leasers, mailcar, mailers, malaise, malices, mealier, measles, mercies, messier, miracle, racemes, racisms, rascals, realise, realism, reclaim, reclass, relaces, remails, resails, resales, rescale, reseals, reslice, rimless, sacrals, sailers, salamis, sarcasm, scalars, scalers, scalier, sclerae, scleras, screams, sealers, seamers, seamier, serials, seriema, siamese, slicers, smilers