Definition of "of a sudden" []

• Alternative form of all of a sudden. (adverb)

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• "It cannot restore of a sudden a half-decayed organ, or heal instantly a gaping wound caused by a cancer."
• "All of a sudden a Dalmatian came hobbling over to me, sat in my lap, and extended his paw."
• "But all of a sudden Roger Bortch broke into a trusting, masculine grin."