The word venalities 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: 16
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (22 words)
elastin, elative, enslave, entails, estival, evilest, ilvaite, invitee, invites, lateens, leanest, leavens, lenites, lineate, nailset, naivest, natives, salient, tensile, vainest, veinlet, vinelet