We found 23 dictionaries that define the word twinned:

General (18 matching dictionaries)

1. twinned: Merriam-Webster
2. twinned: Oxford Learner's Dictionaries
3. twinned: American Heritage Dictionary of the English Language
4. twinned: Collins English Dictionary
5. twinned: Vocabulary.com
6. Twinned, twinned: Wordnik
7. twinned: Wiktionary
8. twinned: Webster's New World College Dictionary, 4th Ed.
9. twinned: Infoplease Dictionary
10. twinned: Dictionary.com
11. Twinned: Online Plain Text English Dictionary
12. twinned: Webster's Revised Unabridged, 1913 Edition
13. twinned: Rhymezone
14. Twinned: AllWords.com Multi-Lingual Dictionary
15. twinned: Webster's 1828 Dictionary
16. twinned: FreeDictionary.org
17. twinned: Mnemonic Dictionary
18. twinned: TheFreeDictionary.com

Business (1 matching dictionary)

19. twinned: Legal dictionary

Computing (1 matching dictionary)

20. twinned: Encyclopedia

Medicine (2 matching dictionaries)

21. online medical dictionary (No longer online)
22. twinned: Medical dictionary

Slang (1 matching dictionary)

23. Twinned: Urban Dictionary

(Note: See twin as well.)

Definitions from Wiktionary (twinned) ▸ adjective:  Produced at, or as if at, a single birth; united. Similar: duplicate, matching, twin-born, twinnable, twinsome, didymous, biparous, twinborn, twinlike, jumelle, more... Opposite: unpaired, solitary, singular, lone, individual ▸ Words similar to twinned ▸ Usage examples for twinned ▸ Idioms related to twinned ▸ Wikipedia articles (New!) ▸ Popular nouns described by twinned ▸ Words that often appear near twinned ▸ Rhymes of twinned ▸ Invented words related to twinned