The word prepositions 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: 19
Highest Scoring Words With Friends™ Play In The Letters prepositions
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Seven Letter Word Alert: (96 words)
erosion, inosite, inserts, inspire, insteps, ioniser, ionises, ironies, isospin, isotope, nippers, nippier, noisier, noosers, norites, nosiest, operons, opposer, opposes, oppress, options, orients, osteons, pepsins, persist, persons, pissier, pisspot, pistons, pitiers, pointer, poisons, poopers, poorest, poroses, porosis, portion, postern, posters, potions, potpies, priests, prisons, pronest, propine, propose, protein, protons, pterins, repoint, reposts, respins, respots, ripstop, ropiest, rosiest, seniors, sinters, sippers, snipers, snipper, snippet, snooper, sooners, soonest, sootier, soppers, soppier, sorties, spinets, spinier, spinose, spirits, sponsor, sporont, spriest, sprints, sprites, stepson, stoners, stonier, stooper, stopper, stories, stripes, tensors, tiepins, tippers, tippier, tipsier, toonies, toppers, toprope, topspin, torsion, triones