The word anaesthetizing 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: 29
Highest Scoring Words With Friends™ Play In The Letters anaesthetizing
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Seven Letter Word Alert: (64 words)
against, agatine, agatise, agatize, agitate, anginas, antigen, asinine, atheise, atheist, atheize, attains, engines, ethanes, gazette, gentian, gestate, hastate, hatting, haziest, heating, hinnies, hinting, hitting, ignites, insight, instant, instate, intense, intents, neatens, neatest, negates, nesting, netting, nightie, satiate, seating, seizing, setting, shining, sitting, stating, tangent, tannest, tasting, teasing, teazing, tenants, tensing, tentage, tenting, testing, tighten, tiniest, tinting, tithing, zaniest, zeatins, zenanas, zeniths, zesting, zingani, zinnias