The word legislature 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™ Plays In The Letters
Seven Letter Word Alert: (75 words)
aeriest, aiglets, aigrets, alleger, alleges, allures, arillus, augites, auletes, austere, eaglets, elaters, elegist, elegits, eluates, estrual, euaster, gaiters, gearset, gelates, gesture, glister, gluiest, gluteal, grilles, gristle, guitars, gullets, gullies, gustier, gutsier, largest, laurels, leaguer, leagues, legates, leisure, ligates, literal, lugsail, lustier, rallies, realest, realise, realist, reglues, relates, restage, retails, retells, retiles, retills, rillets, rituals, rutiles, saltier, saluter, seagull, seriate, slatier, stagier, stealer, stellar, sterile, stiller, tallier, tallies, tellers, tellies, tillage, tillers, trellis, triages, ugliest, uralite