The word guardianships 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: 23
Highest Scoring Words With Friends™ Plays In The Letters guardianships
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Seven Letter Word Alert: (74 words)
airgaps, airguns, airings, airship, anapsid, anguish, arising, arshins, aspirin, aupairs, dashing, dauphin, dharnas, digraph, dishing, dishpan, dishrag, dissing, draping, durians, garnish, grandpa, guarani, gunship, hairpin, hangars, hangups, hardpan, harping, hidings, hissing, iguanas, issuing, pairing, pariahs, parings, parsing, passing, pausing, phasing, piranha, priding, prudish, pursing, pushing, radians, raiding, raising, raisins, raphids, rasping, raspish, ridings, risings, rupiahs, rushing, sangria, sashing, saurian, shading, shaping, sharing, shindig, shinpad, sidings, spading, sparing, spiring, sprains, springs, sringas, sudsing, ungrasp, unpairs