The word randomising 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: 19
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (51 words)
adoring, agonism, airings, amnions, andiron, angioid, arising, damning, darning, digrams, diosmin, domains, donairs, dragons, droning, indians, indigos, ingrain, innards, inroads, ironing, ironman, isogram, magnons, mansion, margins, midairs, minding, minions, moaning, morning, nimrods, ordains, origami, origins, raiding, raining, raising, randoms, ridings, ringman, rinsing, roaming, roaning, sanding, sigmoid, signora, smidgin, snaring, snoring, soaring