The word milliseconds 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: 22
Highest Scoring Words With Friends™ Play In The Letters milliseconds
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Seven Letter Word Alert: (53 words)
cession, codille, collide, collies, collins, cosines, demonic, dimness, diosmin, doilies, dollies, elision, eosinic, iciness, iconism, idolise, illness, incised, incises, incomes, indices, indoles, insides, insoles, iodines, iodises, iodisms, ionised, ionises, lesions, lidless, lioness, lionise, lionism, meiosis, melodic, menisci, midline, million, miscode, miscoin, misdoes, misdone, missile, mission, oldness, ossicle, seconds, seismic, silicle, silicon, similes, sinoids