1. a person who studies or is an expert in grammar

Examples

• The grammarian corrected the student’s sentence structure.
• As a professional grammarian, she wrote several books on English usage.
• The newspaper hired a grammarian to review all articles before publication.
• My English teacher was a strict grammarian who insisted on proper punctuation.
• The grammarian explained the difference between active and passive voice.
• He consulted with a grammarian to improve his writing style.