The word longitudes 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: 16
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (57 words)
delints, dentils, dilogun, diluent, dilutes, dousing, dueling, duelist, dunites, dusting, elogist, eloigns, eluding, elusion, eluting, elution, glinted, glisten, gluiest, glutens, godsent, goldens, guilted, guldens, igneous, indoles, indulge, legions, lingoes, lionets, longest, loudest, lounged, lounges, lousing, luniest, lusting, nodules, ousting, outings, outlies, outline, outside, singled, singlet, snouted, tedious, tingled, tingles, toluide, tongued, tongues, tousled, ugliest, unoiled, untiled, utensil