The word sandpipers 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: 18
Highest Scoring Words With Friends™ Play In The Letters sandpipers
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Seven Letter Word Alert: (40 words)
appends, apprise, aspired, aspires, dappers, despair, diapers, dippers, nappers, nappies, nippers, panders, pansies, paresis, parsnip, pepsins, pinesap, praised, praises, prepaid, resands, resnaps, respans, respins, sanders, sandier, sappers, sappier, sardine, sippers, snapped, snapper, snipers, snipped, snipper, spaders, spiders, spireas, sprains, spreads