The word footbridges 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 footbridges
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Seven Letter Word Alert: (55 words)
bedirts, bestrid, bigfoot, bigoted, biodots, boogers, boogied, boogies, boosted, booster, booters, bridges, debtors, defrost, deorbit, disrobe, disroot, editors, fibrose, fibster, fidgets, firedog, foisted, foister, footers, footsie, forbids, forgets, forgoes, forties, fridges, frosted, goiters, goitres, goobers, goodies, goofier, gooiest, goosier, goriest, orbited, osteoid, reboost, reboots, roisted, roosted, sootier, sorbite, sortied, steroid, stooged, storied, strobed, tierods, toroids