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The definition of grown-up

3 Definitions of: grown-up

    1. adjective, having reached maturity; adult
    2. adjective, suitable for or characteristic of an adult
    3. noun, an adult
    4. Show me some examples of this word: grown-up
    5. Show me the etymology of the word: grown-up
Synonyms: mature, adult, man, woman
 

From Collins

©HarperCollins 2008. Collins English Dictionary definition of grown-up