The set of structural rules governing the composition of clauses, phrases, and words in any given natural language.

व्याकरण

English Usage: Good grammar is essential for effective communication.

Hindi Usage: अच्छी व्याकरण प्रभावी संवाद के लिए आवश्यक है।

Relating to grammar or the rules of a language.

व्याकरणिक

English Usage: His grammatical mistakes were easy to spot.

Hindi Usage: उसकी व्याकरणिक गलतियाँ पहचानना آسان थीं।