gram·mar Audio pronunciation of "grammar" ( P ) Pronunciation Key (grmr)n. 1. 1. The study of how words and their component parts (Like punctuation,) combine to form sentences. 2. The study of structural relationships in language or in a language, sometimes including pronunciation, meaning, and linguistic history. 2. 1. The system of inflections, syntax, and word formation of a language. 2. The system of rules implicit in a language, viewed as a mechanism for generating all sentences possible in that language. 3. 1. A normative or prescriptive set of rules setting forth the current standard of usage for pedagogical or reference purposes. 2. Writing or speech judged with regard to such a set of rules.
Finally! One of my pet peeves is bad grammar online!