The word archegoniate 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: 20
Highest Scoring Words With Friends™ Play In The Letters archegoniate
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Seven Letter Word Alert: (86 words)
acerate, acetone, aconite, acreage, agatine, another, archean, arching, arenite, carinae, carnage, cartage, carting, catogen, certain, chagrin, chainer, changer, chanter, chariot, cheater, cheerio, choragi, choregi, choring, cithern, coating, cognate, coinage, coreign, coterie, crating, earache, earthen, echoing, eighter, enactor, enteric, enticer, erotica, etaerio, etching, etheric, generic, genetic, granite, grantee, greaten, hairnet, haricot, hearing, hearten, heating, hectare, heretic, heroine, hetaera, ingrate, inreach, integer, ironage, neither, notcher, orating, organic, otarine, rainhat, reagent, rechain, recheat, reenact, rehinge, reteach, tanager, tangier, teacher, tearing, therein, thereon, trachea, tracing, trainee, tranche, treeing, triaene, trochee