A system of rules and principles for speaking and writing a language.
(uncountable, linguistics) The study of the internal structure of words (morphology) and the use of words in the construction of phrases and sentences (syntax).
A book describing the rules of grammar of a language.
(computing theory) A formal system specifying the syntax of a language.
Actual or presumed prescriptive notions about the correct use of a language.
(computing theory) A formal system defining a formal language
The basic rules or principles of a field of knowledge or a particular skill.
(UK) A grammar school.
(cellular automata) A set of component patterns, along with the rules for connecting them, which can be combined to form more complex patterns such as large still lifes, oscillators, and spaceships.