The word spotwelding 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: 22
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (73 words)
delints, dentils, deposit, despoil, dipoles, disgown, dopiest, dowsing, elogist, eloigns, eloping, epilogs, epsilon, glinted, glisten, godsent, goldens, indoles, indwelt, legions, leptons, letdown, lingoes, lionets, longest, owliest, pelting, pigeons, piglets, piloted, pingled, pingles, pingoes, pleions, plowing, pointed, posited, posting, singled, singlet, sitdown, slewing, sloping, slowing, soliped, spewing, spindle, spinode, splined, splodge, spoiled, sponged, stewing, stipend, stowing, swindle, swinged, tingled, tingles, topline, topside, towline, twinged, twinges, twonies, welding, welting, widgeon, widgets, wigeons, wiglets, wildest, winglet