We found 22 dictionaries that define the word grown up:

General (16 matching dictionaries)

1. grown-up, grown up: Merriam-Webster
2. grown-up: Oxford Learner's Dictionaries
3. grown-up: American Heritage Dictionary of the English Language
4. grown-up, grown-up, grown up: Collins English Dictionary
5. Grown-Up, Grown-up, grown-up: Wordnik
6. grown-up, grown up: Cambridge Advanced Learner's Dictionary
7. grown-up, grown up: Wiktionary
8. grown-up: Webster's New World College Dictionary, 4th Ed.
9. grown-up: The Wordsmyth English Dictionary-Thesaurus
10. grown-up: Infoplease Dictionary
11. grown-up, grown up: Dictionary.com
12. Grown-Up (EP), Grown Up (album), Grown Up (film): Wikipedia, the Free Encyclopedia
13. Grown up, grown-up: TheFreeDictionary.com
14. grown up: Longman Dictionary of Contemporary English

Business (2 matching dictionaries)

15. Grown up: Legal dictionary
16. Grown up: Financial dictionary

Computing (1 matching dictionary)

17. Grown up: Encyclopedia

Medicine (1 matching dictionary)

18. Grown up: Medical dictionary

Miscellaneous (1 matching dictionary)

19. Grown up: Idioms

Slang (1 matching dictionary)

20. Grown-up, the grown-up: Urban Dictionary

Definitions from Wiktionary (Grown up) ▸ adjective:  Alternative form of grown-up [Adult, physically mature.] Similar: grownup, gray-haired, over-age, middleaged, fully-fledged, grey-headed, longlived, worldly wise, welladjusted, twentish, more... Opposite: immature, childish, infantile, juvenile Phrases: all grown up, grown up with it, calmer and grown up, not grown up, grown up trees, more... Adjectives: grown-up, callow, yeared, youthful, puny, adult, young, aged, minor, youngly ▸ Words similar to grown up ▸ Usage examples for grown up ▸ Idioms related to grown up ▸ Wikipedia articles (New!) ▸ Popular nouns described by grown up ▸ Words that often appear near grown up ▸ Rhymes of grown up ▸ Invented words related to grown up