We found 22 dictionaries that define the word Rules:

General (11 matching dictionaries)

1. rules: Merriam-Webster
2. Rules: Oxford Learner's Dictionaries
3. Rules, the Rules: Collins English Dictionary
4. rules: Vocabulary.com
5. Rule's, Rules, rule's, rules: Wordnik
6. rules: Cambridge Advanced Learner's Dictionary
7. Rules, rules: Wiktionary
8. rules: Dictionary.com
9. rules: Cambridge Essential American English Dictionary
10. Rules (Doja Cat song), Rules (album), Rules (novel), Rules (restaurant), Rules, Rules, The Rules, The rules: Wikipedia, the Free Encyclopedia
11. Rules: TheFreeDictionary.com

Art (1 matching dictionary)

12. The Organon: A Conceptually Indexed Dictionary (by Genus and Differentia) (No longer online)

Business (4 matching dictionaries)

13. rules: Merriam-Webster Legal Dictionary
14. Rules: GLOSSARY OF LEGISLATIVE TERMS
15. Bouvier's Law Dictionary 1856 Edition (No longer online)
16. rules: Legal dictionary

Computing (1 matching dictionary)

17. rules: Encyclopedia

Medicine (1 matching dictionary)

18. rules: Medical dictionary

Miscellaneous (2 matching dictionaries)

19. A Brief Critical Dictionary of Education (No longer online)
20. rules: Idioms

Slang (2 matching dictionaries)

21. Rules: Green’s Dictionary of Slang
22. The rules: Urban Dictionary

(Note: See rule as well.)

Definitions from Wiktionary (Rules) ▸ noun:  (informal) Australian rules football. Similar: prescript, regulation, principle, normal, decree, predominate, govern, dominate, convention, pattern, more... Opposite: chaos, disorder, anarchy, freedom, lawlessness Types: law, statute, regulation, ordinance, rule of thumb, common law, more... Phrases: The Rules, ground rules, rules out, no rules, rules committee, more... Adjectives: general, new, certain, strict, special, basic, following, legal, simple, specific, moral Colors:     red,     blue,     black,     white,     gray, more... ▸ Words similar to Rules ▸ Usage examples for Rules ▸ Idioms related to Rules ▸ Wikipedia articles (New!) ▸ Popular adjectives describing Rules ▸ Words that often appear near Rules ▸ Rhymes of Rules ▸ Invented words related to Rules