The word machicolations 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: 27
Highest Scoring Words With Friends™ Play In The Letters machicolations
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Seven Letter Word Alert: (69 words)
acclaim, acholia, aclinic, actinic, actions, alicant, animals, animist, atomics, atonias, atonics, cahoots, calicos, cations, chamois, chaotic, chitlin, clastic, clinics, clitics, cloacas, coalman, coastal, coatman, colicin, colitis, colonic, coltish, comical, conical, coolant, iconism, iconist, ischiac, ischial, italics, lacinia, laconic, laminas, liaison, lionism, lotions, maniacs, masonic, miscoin, monilia, moolahs, moonlit, motions, nicosia, oilcans, oncotic, ooliths, oolitic, osmotic, satanic, scatoma, sciatic, scotoma, silicon, solicit, somatic, somitic, stamina, stoical, stomach, thalami, thiamin, toolman