op-ed 
noun North American
A newspaper page opposite the editorial page, devoted to personal comment, feature articles, etc. [as modifier]: an op-ed piece...
- Needless to say, these are not the people who write the op-ed pages of European newspapers.
- So he wrote an op-ed piece in the newspapers and people started hearing about Wikipedia.
- His foreign minister wrote an article in the op-ed page of The Washington Post this week.
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