Definition of dunno
—used in writing to represent the sound of the phrase (I) don't know when it is spoken quickly “What I wanted to ask about,” Roy said, “is you and your mom. What's the deal?” “I dunno. We just never connected,” the boy said matter-of-factly. — Carl Hiassen, Hoot, 2002 “What're those things?” whispered Ron. “Dunno,” said Harry. — J. K. Rowling, Harry Potter and the Order of the Phoenix, 2003
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First Known Use of dunno
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Britannica English: Translation of dunno for Arabic speakers
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