Dictionary.com
Thesaurus.com

Oxford comma

British  

noun

  1. a comma between the final items in a list, often preceding the word `and' or `or', such as the final comma in the list newspapers, magazines, and books

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of Oxford comma

C20: because it was traditionally a feature of the house style at Oxford University Press

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"It is my understanding that he liked to use the Oxford comma," she added.

From BBC • May 9, 2024

On his website, he described himself as a “militant bicyclist” and “a proponent of the singular they, the Oxford comma, and pre-Elon Twitter.“

From Washington Times • Oct. 2, 2023

That was a trick, right there — a bit of rhetorical tomfoolery to make you think the impassioned public testimony and the Oxford comma were connected.

From Seattle Times • Mar. 31, 2023

Mr Schmidt's main bugbear is excessive punctuation, not unlike UK politician Thérèse Coffey who objected to the so-called "Oxford comma".

From BBC • Dec. 22, 2022

And, well, I argued for that Oxford comma.

From "Eats, Shoots & Leaves" by Author