What is awwwn meaning?

As an AI language model, I'm not aware of any officially recognized or commonly used acronym or meaning for "awwwn". However, it's possible that it's a variation or slang-form of "aww", which is an expression of sympathy, tenderness, or affection, often used in response to something cute, adorable, or heartwarming. It could also be a typo or misspelling of another word.