The term op ed is a shortened form of which phrase?

The term op ed is a shortened form of which phrase?

The term op-ed is a shortened form of the phrase “opposite the editorial page”.

This designation originally referred quite literally to the physical placement of the opinion piece within a printed newspaper; the article was traditionally printed on the page situated opposite the main editorial page, which contains the official voice and opinions of the publication’s editorial board. Over time, the term has become a widely accepted industry standard used to describe any article that expresses the strong, informed personal viewpoint of an outside contributor who is not part of the publication’s regular editorial staff, regardless of where it is physically printed, particularly in the digital age.

Source:

https://www.threads.com/@beliproduk.official/post/DQ4EqUOkrux