What punctuation Is Used to separate words or phrases in a series?

The punctuation used to separate words or phrases in a series is a comma.

Example:

* I went to the store to buy apples, bananas, and oranges.

Note:

* Use a comma after each item in the series, except for the last one if it is followed by a conjunction like "and" or "or".

* If the items in the series are long or contain commas themselves, you can use semicolons instead of commas.