The word monocotyledons 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: 26
Highest Scoring Words With Friends™ Play In The Letters monocotyledons
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Seven Letter Word Alert: (43 words)
coeloms, coldest, comedos, condemn, condole, condoms, condone, condyle, connote, consent, console, contend, coolest, cotyles, coyotes, cytosol, dotcoms, economy, endmost, endonym, etymons, modesty, monocle, monocot, monoecy, monsoon, motleys, noodles, notedly, ocelots, octynes, odonyms, oeconym, oocytes, scooted, snooted, stooled, sydnone, syndome, syntone, tendons, toolmen, tycoons