1) Newspaper article measure 
A column inch is a measurement of the amount of content in published works that use multiple columns per page. A column inch is a unit of space one column wide by one inch high. ==A newspaper page== Newspaper pages are laid out on a grid that consists of a margin on 4 sides, a number of vertical columns and space in between columns, called gutters...
A newspaper measurement unit, one inch long and one column wide. Ad prices are multiplied by column inches. 
A measure of area used in newspapers and magazines to calculate the cost of display advertising. A column inch is one column wide by one inch deep. 
A common unit of measure by newspapers, whereby ad space is purchased by the width, in columns, and the depth, in inches. For example, an ad that is three standard columns wide and 5 inches tall (or deep) would be 15 column inches.
Refers to advertising space one in high by one column wide. The cost of space ads in newspapers and magazines is computed by this measurment. By the column inch.
A measurement of text based on the length of a single standard column of type in a specific newspaper or magazine. Also called a single column centimetre (SCCM).
[n] - a unit of measurement for advertising space
noun a unit of measurement for advertising space
type one column wide and 1 in. (2.54 cm) deep.