The word agronomist 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 agronomist
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Seven Letter Word Alert: (31 words)
agonism, agonist, amongst, gastrin, gnomist, isogram, margins, maroons, martins, matings, matrons, migrant, moating, monitor, mooring, mooting, motions, orating, oration, ratings, rations, roaming, rooming, rooting, signora, soaring, sooting, sorting, staring, storing, torsion