The word archaeopteryx 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: 30
Highest Scoring Words With Friends™ Play In The Letters archaeopteryx
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Seven Letter Word Alert: (63 words)
acatery, acerate, aerator, apocyte, apteryx, archery, atrophy, carport, carroty, catarrh, caterer, chapter, charter, cheaper, cheater, coherer, creator, earache, ecotype, eophyte, eparchy, erector, exacter, exactor, exarchy, excerpt, excreta, exocarp, hectare, hetaera, operate, oxheart, percher, poacher, portray, praetor, preachy, precoat, preheat, prerace, prorate, ratrace, reacher, reactor, rechart, recheat, recrate, rectory, repatch, reperch, reteach, retrace, taperer, teacher, terrace, therapy, toparch, tracery, trachea, trochar, trochee, xerarch, yachter