DictionarygrammarianGrammar specialist
noun

grammarian

gruh-MAIR-ee-uhn/ɡrəˈmeriən/

A person who specializes in the rules of a language.

The grammarian explains why this sentence needs a different verb.

A grammarian actively analyzes sentence structure using a conventional sentence diagram, making grammar itself—not generic reading—the visible subject of study.
Etymology

The ending turns grammar or learning into a label for a person versed in it. Once used broadly for a learned person, grammarian now identifies a specialist in the rules and patterns of language.

In context

AmericanLibraryParis43:37
the first grammars of English were written in the 18th century those people's profession was grammarian what were they grammarians of they were grammarians of Latin
Peter Sokolowski on Nobles, Yeomen, and How French Brought ‘Class’ to English

More examples

  • Several grammarians disagree about whether that construction is acceptable.
  • We ask a grammarian to explain the rule about pronouns.
  • Her work as a grammarian focuses on spoken English.

Forms

grammarian · grammarians

grammar noun — The system of rules governing a language.

grammatical adjective — Relating to the structural rules of a language.

Similar words

linguist
Studies language broadly rather than focusing specifically on grammatical rules.