Serial comma

Comma before the conjunction in a list

In English-language punctuation, the serial comma, also referred to as the series comma, Oxford comma, or Harvard comma, is a comma placed immediately after the penultimate term and before the coordinating conjunction in a series of three or more terms. For instance, a list of three countries might be punctuated without the serial comma as "France, Italy and Spain" or with the serial comma as "France, Italy, and Spain". The serial comma can serve to avoid ambiguity in specific contexts, though its employment may also generate ambiguity under certain circumstances.

This keyword could refer to multiple things. Here are some suggestions: