The word staphylococcus is playable in Words With Friends™, but 1 blank substituting for the letter 'c' is 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: 28
Highest Scoring Words With Friends™ Plays In The Letters staphylococcus
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Seven Letter Word Alert: (41 words)
accloys, accosts, apthous, autopsy, cachous, cahoots, calypso, cashout, catchup, catsups, chylous, copouts, copycat, cupolas, cyclops, cystous, cytosol, layouts, locusts, occults, octopus, oocysts, ooplast, outlays, outplay, passout, payouts, psychos, schools, sculpts, slouchy, soothly, sophtas, splashy, splatch, splotch, spousal, stuccos, stylops, toyshop, upshots