Comma and Punctuation mark

Comma noun - A punctuation mark (,) used to indicate the separation of elements within the grammatical structure of a sentence.

Punctuation mark and comma are semantically related. In some cases you can use "Punctuation mark" instead a noun "Comma".

Punctuation mark noun - The marks used to clarify meaning by indicating separation of words into sentences and clauses and phrases.

Comma and punctuation mark are semantically related. Sometimes you can replace term "Comma" with "Punctuation mark", this terms are similar.