Column (periodical)

A column is a recurring piece or article in a newspaper, magazine or other publication, where a writer expresses his/her own opinion in few columns allotted to him/her by the newspaper organisation. Columns are written by columnists.

What differentiates a column from other forms of journalism is that is a regular feature in a publication – written by the same writer or reporter and usually on the same subject area or theme each time – and that it typically, but not universally, contains the author's opinion or point of view.

Some types of newspaper columns are:

The Pulitzer Prize for Commentary is often awarded for commentary appearing in a column.

...
Wikipedia