The word psychologies 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: 25
Highest Scoring Words With Friends™ Plays In The Letters psychologies
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Seven Letter Word Alert: (28 words)
chisels, chooses, colossi, ecology, epilogs, glioses, glycose, glyphic, goosies, goosish, gospels, gossipy, gypsies, hospice, isohels, ossicle, physics, polices, polyose, pooches, psyches, psychos, schleps, schools, sleighs, splices, spyhole, sylphic