The word centigrade 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: 17
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (50 words)
angered, arenite, cairned, cantred, carding, carting, catered, centred, certain, crating, created, cringed, darting, deraign, derange, detrain, dragnet, enacted, enraged, enteric, enticed, enticer, generic, genetic, grained, granite, granted, grantee, greaten, grenade, ingrate, integer, negated, reacted, reading, reagent, recaned, recited, reenact, reigned, tangier, tearing, tracing, tradein, trading, trained, trainee, tranced, treeing, triaene