We found 22 dictionaries that define the word their's:

General (21 matching dictionaries)

1. theirs: Longman Dictionary of Contemporary English
2. theirs: Merriam-Webster
3. theirs: Oxford Learner's Dictionaries
4. theirs: American Heritage Dictionary of the English Language
5. theirs: Collins English Dictionary
6. theirs: Vocabulary.com
7. Their's, Theirs, their's, theirs: Wordnik
8. theirs: Cambridge Advanced Learner's Dictionary
9. theirs: Wiktionary
10. theirs: Webster's New World College Dictionary, 4th Ed.
11. theirs: The Wordsmyth English Dictionary-Thesaurus
12. theirs: Infoplease Dictionary
13. theirs: Dictionary.com
14. theirs: Cambridge Essential American English Dictionary
15. theirs: AllWords.com Multi-Lingual Dictionary
16. theirs: MyWord.info
17. theirs: FreeDictionary.org
18. theirs: TheFreeDictionary.com
19. theirs: Wikimedia Commons US English Pronunciations

Miscellaneous (1 matching dictionary)

20. Sound-Alike Words (No longer online)

Opposite: mine, yours, his, hers, ours Phrases: of theirs, theirs not to reason why, Theirs Is the Glory, not theirs, claim as theirs, more... Adjectives: less, holy, bed, mad, more, emphatic ▸ Words similar to their's ▸ Usage examples for their's ▸ Idioms related to their's ▸ Wikipedia articles (New!) ▸ Words that often appear near their's ▸ Rhymes of their's ▸ Invented words related to their's