We found 16 dictionaries that define the word locked up:

General (7 matching dictionaries)

1. locked up: Collins English Dictionary
2. locked up: Vocabulary.com
3. locked-up: Wordnik
4. locked up: Wiktionary
5. locked up: Dictionary.com
6. Locked Up (TV series), Locked Up (song), Locked Up: Wikipedia, the Free Encyclopedia
7. Locked Up: TheFreeDictionary.com

Art (1 matching dictionary)

8. ODLIS: Online Dictionary of Library and Information Science (No longer online)

Business (2 matching dictionaries)

9. Locked Up: Legal dictionary
10. Locked Up: Financial dictionary

Computing (2 matching dictionaries)

11. locked up: Free On-line Dictionary of Computing
12. Locked Up (Remix), locked up: Encyclopedia

Medicine (2 matching dictionaries)

13. Locked Up: Medical dictionary
14. online medical dictionary (No longer online)

Miscellaneous (1 matching dictionary)

15. Locked Up: Idioms

Slang (1 matching dictionary)

16. Locked Up: Urban Dictionary

Definitions from Wiktionary (locked up) ▸ adjective:  (informal, idiomatic) Imprisoned, incarcerated. Phrases: being locked up forever, being locked up, more... ▸ Words similar to locked up ▸ Usage examples for locked up ▸ Idioms related to locked up ▸ Wikipedia articles (New!) ▸ Popular nouns described by locked up ▸ Words that often appear near locked up ▸ Rhymes of locked up ▸ Invented words related to locked up