The word progestins 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 progestins
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Seven Letter Word Alert: (71 words)
egoists, egotrip, engross, goiters, goitres, goriest, ignores, ingests, ingress, inserts, insteps, norites, nosiest, orients, persist, persons, pigeons, pingers, pingoes, pistons, pointer, porting, postern, posters, posting, priests, prisons, pronest, protein, pterins, regions, repoint, reposts, resigns, respins, respots, resting, ropiest, rosiest, seniors, signers, signets, signors, singers, sinters, snipers, sorties, sorting, spigots, spinets, spinose, sponger, sponges, sporing, spriest, springs, sprints, sprites, stepson, stinger, stogies, stoners, stonier, stories, storing, strings, stripes, tensors, tigress, tossing, triones