The word photomontages 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: 24
Highest Scoring Words With Friends™ Play In The Letters photomontages
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Seven Letter Word Alert: (37 words)
amongst, anthems, geomaps, geostat, ghettos, homages, hotpots, hotspot, magneto, magnets, mangoes, megaton, montage, mottoes, onstage, osteoma, ototome, ottoman, patents, phantom, photons, postage, postman, postmen, potages, potshot, pottage, shampoo, shopman, shopmen, stomate, tampons, teapots, teashop, tomatos, topmast, topmost