grammar

grammar /ˈgræmɚ/ noun
plural grammars
grammar
/ˈgræmɚ/
noun
plural grammars
Britannica Dictionary definition of GRAMMAR
1 
: the set of rules that explain how words are used in a language
[noncount]
[count]
2 
[noncount] : speech or writing judged by how well it follows the rules of grammar
3 
[count] : a book that explains the grammar rules of a language