The word eternalise 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: 12
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (59 words)
aeriest, antlers, antsier, arenite, earnest, eastern, eeriest, elastin, elaters, entails, enteral, entrees, entries, eternal, lateens, latrine, leaners, leanest, lenites, lineate, nailers, nailset, nastier, nearest, ratline, realest, realise, realist, relates, release, relents, reliant, relines, renails, rentals, reslant, restain, retails, retains, retiles, retinal, retinas, salient, saltern, saltier, seriate, slatier, stainer, stealer, steelie, sterane, sterile, sternal, teenier, tensile, trainee, trenail, triaene, trienes