What is the antonym for comma?

There isn't a single perfect antonym for "comma" in the sense of a punctuation mark. However, depending on the context, you could consider these options:

* Period (.): A period marks the end of a sentence, while a comma is used within a sentence.

* Semicolon (;): This punctuation mark is used to separate independent clauses, which is sometimes seen as a stronger separation than a comma.

* Colon (:): A colon is used to introduce a list or explanation, which is different from the role of a comma.

* No punctuation: In some cases, you may simply omit punctuation where a comma would normally be used.

Ultimately, the best "antonym" for comma depends on the specific situation and what you're trying to convey.