The word gingersnaps 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: 20
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (55 words)
aggress, aspires, earning, engrasp, ensigns, erasing, gainers, gaspers, gaspier, gasping, gassier, gassing, gearing, gingers, ginseng, ingress, insaner, naggers, nearing, pansies, paresis, parging, parings, parsing, passing, pingers, praises, ranging, rasping, reaping, regains, resigns, resnaps, respans, respins, saggers, saggier, searing, sensing, serging, siennas, signage, signers, singers, sinners, snagger, snaring, snipers, spanner, sparing, spinner, spireas, sprains, springs, sringas