The word caramelizing 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: 31
Highest Scoring Words With Friends™ Play In The Letters caramelizing
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Seven Letter Word Alert: (57 words)
airline, airmail, alginic, aligner, amazing, anaemic, angelic, calming, caramel, carinae, carinal, carmine, carnage, ceiling, claimer, clinger, cranial, crazing, czarina, geminal, glacier, glancer, glazier, gmelina, gracile, gremlin, grimace, imagine, lacinia, laicize, lairing, laminae, laminar, learing, magical, mailcar, mailing, manacle, manager, mangier, mangler, manlier, mineral, mingler, miracle, railing, realign, reaming, reclaim, reclang, regalia, reicing, zincier, zingara, zingare, zingari, zingier