The word intergalactic 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: 23
Highest Scoring Words With Friends™ Play In The Letters intergalactic
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Seven Letter Word Alert: (93 words)
accinge, aclinic, actinic, agatine, agitate, airline, alginic, alicant, aligner, angelic, article, calcine, calcite, carinae, carinal, carnage, cartage, carting, cattail, cattier, catting, ceiling, central, centric, certain, ciliate, circlet, citrate, citrine, cittern, clatter, clinger, clitter, cranial, crating, elating, gelatin, genital, glacier, glancer, glitter, gracile, granite, icteric, igniter, inciter, inertia, ingrate, intagli, lacinia, lactate, lairing, latrine, lattice, learing, letting, lignite, lintier, nattier, nictate, nitrate, nitrite, nittier, railing, ratline, rattail, ratting, realign, recital, reclang, regalia, regatta, reicing, reliant, retinal, ringlet, tactile, tagline, tailing, tanager, tangier, tantric, teacart, tearing, tertial, tetanic, tiering, tilting, tingler, tintier, titanic, tracing, trenail