Not breaching any constraints of the grammar, or morpho-syntax, of the relevant language. / Of or pertaining to grammar.

(archaic) A school that teaches its pupils the grammar system of a European language, especially Latin and Greek.

(grammar) A linguistic category used to distinguish between the speaker of an utterance and other people; implemented in most languages by a variety of pronouns, and in inflected languages by variation in word endings.

(computing) A software application, like a spellchecker, that attempts to verify the grammar in a document.

A person who studies grammar.

Alternative letter-case form of Gramma

(Australia) A variety of pumpkin, a cultivar of Cucurbita moschata.

Alternative form of grama

Something that is written. / The subjects of reading, writing, and arithmetic.

plural of grammarian