The word catholicising 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: 25
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (74 words)
aclinic, actinic, actions, agnosic, agonist, aisling, alginic, alights, anglist, atonics, caching, calicos, cashing, casting, cations, chaotic, chasing, chitlin, clastic, clinics, clitics, closing, coaling, coating, cognacs, coiling, colicin, colitis, coltish, conical, costing, gnocchi, gnostic, goatish, gotchas, gothics, hailing, halting, hosting, iconist, initial, insight, intagli, ischiac, ischial, italics, itching, lacings, laconic, lashing, lasting, lathing, liaison, listing, longish, nicosia, oilcans, oligist, sailing, salting, scaling, sciatic, siccing, silicic, silicon, silting, slating, slicing, soiling, solicit, stoical, tailing, tilings, toiling