The word cartographical 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: 28
Highest Scoring Words With Friends™ Play In The Letters cartographical
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Seven Letter Word Alert: (46 words)
achiral, acholia, airport, alright, aphagia, apogaic, apricot, archaic, atropia, caloric, caltrap, caltrop, capital, capitol, captcha, carport, catalog, catarrh, chaotic, chariot, choragi, clipart, coalpit, coaltar, cochair, galtrap, galtrop, graphic, haircap, haricot, octarch, optical, paralog, partial, patrial, philtra, polaric, practic, railcar, tapioca, toparch, topical, toprail, triarch, trochar, trophic