The word catholicities 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: 22
Highest Scoring Words With Friends™ Play In The Letters catholicities
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Seven Letter Word Alert: (76 words)
accites, achiest, aitches, alecost, alethic, aloetic, altoist, ascetic, atheist, cachets, cacolet, calcite, caliche, calicos, caltech, castile, catches, celosia, chalets, chalice, chaotic, chattel, chilies, choices, cholate, choleic, ciliate, clastic, cliches, clitics, cloches, clothes, coaches, coalise, coalite, cochlea, coeliac, colitis, coltish, costate, elastic, elicits, elitist, ethical, halites, holiest, hostile, icicles, ileitis, iolites, ischiac, ischial, isolate, italics, laciest, lactose, laicise, latches, latites, lattice, loathes, locates, oiliest, satchel, sciatic, silicic, solicit, statice, stealth, stoical, tactics, tactile, thistle, tictacs, tictocs, toilets