[gram-er] 
| 1. | the study of the way the sentences of a language are constructed; morphology and syntax. |
| 2. | these features or constructions themselves: English grammar. |
| 3. | an account of these features; a set of rules accounting for these constructions: a grammar of English. |
| 4. | Generative Grammar. a device, as a body of rules, whose output is all of the sentences that are permissible in a given language, while excluding all those that are not permissible. |
| 5. | prescriptive grammar. |
| 6. | knowledge or usage of the preferred or prescribed forms in speaking or writing: She said his grammar was terrible. |
| 7. | the elements of any science, art, or subject. |
| 8. | a book treating such elements. |
(téchnē) grammatical (art); see -ar 2 