The word reciprocatory 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: 24
Highest Scoring Words With Friends™ Plays In The Letters
Seven Letter Word Alert: (40 words)
airport, apocyte, apricot, cacoepy, carport, carrier, carroty, coactor, copycat, corpora, correct, creator, cryptic, ectopia, ectopic, erotica, erratic, icetray, oocytic, opacity, oratory, peccary, picrate, porotic, portico, portray, practic, praetor, precoat, proctor, prootic, prorate, reactor, recarry, rectory, tarrier, terroir, topiary, tracery, trooper