Dunno
dunno definition by Slang.net
This page explains what the slang term "dunno" means. The definition, example, and related terms listed above have been written and compiled by the Slang.net team.
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Dunno means "don't know." People typically use this casual, clipped slang term among family and friends, when they do not know what they are going to do.
For example, people may respond with "I dunno" or just "dunno" when asked:
In online chat and text messages, people may also use DK or dno to mean "don't know" and IDK to mean "I don't know."