grammar

noun

gram·​mar ˈgra-mər How to pronounce grammar (audio)
1
a
: the study of the classes of words, their inflections (see inflection sense 2), and their functions and relations in the sentence
b
: a study of what is to be preferred and what avoided in inflection (see inflection sense 2) and syntax (see syntax sense 1)
2
a
: the characteristic system of inflections (see inflection sense 2) and syntax of a language
b
: a system of rules that defines the grammatical structure of a language
3
a
: a grammar textbook
b
: speech or writing evaluated according to its conformity to grammatical rules
appalled at the bad grammar of college students
4
: the principles or rules of an art, science, or technique
a grammar of the theater
also : a set of such principles or rules
grammarian noun

Examples of grammar in a Sentence

English grammar can be hard to master. comparing English and Japanese grammar comparing the grammars of English and Japanese “Him and I went” is bad grammar. I know some German, but my grammar isn't very good.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Her latest volume, the National Book Award winner Something About Living, is full of impossible cohesions, offering this straight-on singularity of body and mind to birds, grammars, and architectures. Cindy Juyoung Ok june 26, Literary Hub, 26 June 2025 Look for misspellings, poor grammar, or URLs that are suspicious. Staff Report, Hartford Courant, 22 June 2025 High school seniors were asked to submit an essay describing the responsibilities of citizens in a democratic society and were graded by four judges based on grammar, spelling, originality, context and content. Michelle Mullins, Chicago Tribune, 17 June 2025 At one end are low-reward, high-effort tasks: formatting slides, reviewing invoices, checking grammar, organizing meeting notes, or tagging support tickets in helpdesk platforms. Forbes.com, 9 June 2025 See All Example Sentences for grammar

Word History

Etymology

Middle English gramere, from Anglo-French gramaire, modification of Latin grammatica, from Greek grammatikē, from feminine of grammatikos of letters, from grammat-, gramma — more at gram

First Known Use

14th century, in the meaning defined at sense 1a

Time Traveler
The first known use of grammar was in the 14th century

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Cite this Entry

“Grammar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/grammar. Accessed 30 Jun. 2025.

Kids Definition

grammar

noun
gram·​mar ˈgram-ər How to pronounce grammar (audio)
1
: the study of the classes of words, their inflections, and their functions and relations in a language
2
: the facts of language with which grammar deals
3
a
: a grammar textbook
b
: speech or writing evaluated according to its conformity to grammatical rules
"Him and I went" is bad grammar
Etymology

Middle English gramere, from early French gramaire (same meaning), from Latin grammatica (same meaning), derived from Greek gramma "letter, piece of writing," derived from graphein "to write" — related to graffito, -gram, -graph

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