We found 12 dictionaries that define the word three of a kind:

General (6 matching dictionaries)

1. three of a kind: Merriam-Webster
2. three-of-a-kind, three of a kind: Wiktionary
3. three of a kind: Infoplease Dictionary
4. three of a kind: Dictionary.com
5. Three of a Kind (The X-Files), Three of a Kind, Three of a kind: Wikipedia, the Free Encyclopedia
6. Three of a Kind: TheFreeDictionary.com

Business (1 matching dictionary)

7. Three of a Kind: Legal dictionary

Miscellaneous (1 matching dictionary)

8. Three of a Kind: Idioms

Slang (1 matching dictionary)

9. three-of-a-kind: Urban Dictionary

Sports (3 matching dictionaries)

10. Three of a kind: Dan's Poker
11. winyourwager.com Gambling Glossary (No longer online)
12. Three of a Kind: Guide For Gambling Dictionary

Definitions from Wiktionary (three of a kind) ▸ noun:  (card games) A hand including three cards of the same rank. Similar: three-of-a-kind, TRIPS, gleek, pair royal, four of a kind, full house, threes, tripleton, tierce, four-of-a-kind, more... Opposite: pair, two of kind, one pair Phrases: three of a kind in poker, more... ▸ Words similar to three of a kind ▸ Usage examples for three of a kind ▸ Idioms related to three of a kind ▸ Wikipedia articles (New!) ▸ Words that often appear near three of a kind ▸ Rhymes of three of a kind ▸ Invented words related to three of a kind