The word bargainings 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
Seven Letter Word Alert: (24 words)
abasing, airbags, airings, anginas, arising, banging, bargain, barging, biasing, binging, gaining, garbing, girning, ingrain, ragbags, raining, raising, ranging, ringing, rinsing, sangria, signing, singing, snaring