The word acclimatised 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: 23
Highest Scoring Words With Friends™ Play In The Letters acclimatised
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Seven Letter Word Alert: (64 words)
accited, accites, acclaim, aedilic, aliased, ascetic, cacemia, calcite, calmest, camelid, cascade, castile, castled, cicadas, ciliate, citadel, cladist, claimed, clastic, climate, clitics, dacites, dailies, decimal, declaim, deictic, deistic, delicts, delimit, deltaic, details, dialect, diciest, dietics, dilates, elastic, elicits, elitism, icedams, icicles, italics, laciest, lactase, laicise, liaised, limited, malaise, malices, medical, metical, mildest, miscite, misdate, misdeal, misdial, misedit, mislaid, mislead, saccate, sciatic, seamaid, sidelit, stimied, tamales