The word headspring 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: 19
Highest Scoring Words With Friends™ Play In The Letters headspring
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Seven Letter Word Alert: (66 words)
arshine, aspired, dangers, dashing, deraign, despair, diapers, digraph, dishpan, dishrag, draping, engrasp, erasing, gainers, ganders, gardens, garnish, gaspier, gnashed, gnasher, grained, graphed, grasped, hagride, handers, handier, hangers, hardens, harpies, harping, heading, headpin, heaping, hearing, heparin, herding, hernias, hinders, panders, parings, parsing, phasing, phrased, pingers, pinhead, praised, raphids, rasping, reading, reaping, regains, rehangs, sandier, sardine, searing, shadier, shading, shaping, sharing, sharped, sharpen, sharpie, shinpad, shrined, spading, sparing