What Is a Comma? While a period ends a sentence, a comma indicates a smaller break. Some writers think of a comma as a soft pause—a punctuation mark that separates words, clauses, or ideas within a sentence.

Is a comma grammar or punctuation?

Are commas even grammar? ... But language scholars by and large think of punctuation (whether to use the Oxford comma; whether to put commas and full stops inside inverted commas or outside) as orthography or mechanics, not grammar. Punctuation is useful for organising prose to make it readable.

What does a comma punctuation mean?

• A comma is a punctuation mark that separates words, ideas or phrases within a. sentence. It is also used to indicate a pause, or caesura, in a sentence.