The word courteously 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: 19
Highest Scoring Words With Friends™ Play In The Letters courteously
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Seven Letter Word Alert: (32 words)
closure, cloture, cloyers, cluster, colours, colters, coolers, coolest, cotyles, coulter, courtly, couture, coyotes, creosol, cruelty, culture, curtsey, cutlery, cytosol, ecotour, elusory, elutors, looters, ocelots, oocytes, outsole, retools, scooter, scouter, sutlery, toolers, urocyst