| grammar | |
| 1. n. A system of rules and principles for speaking and writing a language. | |
| 2. n. (linguistics) The study of the internal structure of words (morphology) and the use of words in the construction of phrases and sentences (syntax). | |
| 3. n. A book describing the rules of grammar of a language. | |
| 4. n. (computing theory) A formal system specifying the syntax of a language. | |
| 5. n. (computing theory) A formal system defining a formal language | |
| 6. n. The basic rules or principles of a field of knowledge or a particular skill. | |
| 7. n. (UK, archaic) A textbook. | |
| a grammar of geography | |
| 8. n. (UK) A grammar school. | |
| 9. v. (obsolete, intransitive) To discourse according to the rules of grammar; to use grammar. | |
