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Definition of Column inch
1. Noun. A unit of measurement for advertising space. 
Definition of Column inch
1. Noun. (printing) One inch of a printed column; a measure of space allocated. ¹
¹ Source: wiktionary.com
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1. Noun. A unit of measurement for advertising space. 
1. Noun. (printing) One inch of a printed column; a measure of space allocated. ¹
¹ Source: wiktionary.com