The word reciprocative 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: 26
Highest Scoring Words With Friends™ Plays In The Letters
Seven Letter Word Alert: (59 words)
accrete, activer, airport, apricot, averter, captive, carport, caterer, coercer, correct, coterie, coverer, coveter, creator, crevice, ectopia, ectopic, erector, erotica, erratic, etaerio, evictor, evocate, icteric, operate, overact, overate, overeat, overtip, peatier, pervert, picrate, picrite, piercer, pivoter, practic, praetor, prairie, precoat, prerace, pricier, private, prorate, reactor, receipt, reciter, recover, recrate, repaver, repivot, reprice, reprove, retrace, revoice, riveter, taperer, tearier, terrace, vaporer