We found 7 dictionaries that define the word grammatical rule:

General (7 matching dictionaries)

1. grammatical rule: Vocabulary.com
2. grammatical rule: Dictionary.com
3. Grammatical rule: Wikipedia, the Free Encyclopedia
4. grammatical rule: Rhymezone
5. grammatical rule: FreeDictionary.org
6. grammatical rule: Mnemonic Dictionary
7. grammatical rule: TheFreeDictionary.com

(Note: See grammatical_rules as well.)

Definitions from WordNet (grammatical rule) ▸ noun:  a linguistic rule for the syntax of grammatical utterances ▸ Words similar to grammatical rule ▸ Usage examples for grammatical rule ▸ Idioms related to grammatical rule ▸ Wikipedia articles (New!) ▸ Words that often appear near grammatical rule ▸ Rhymes of grammatical rule ▸ Invented words related to grammatical rule