/ Dictionary / Index C column inch: Meaning and Definition of Find definitions for: col'umn inch' Pronunciation: [key] — Print. Print. type one column wide and 1 in. (2.54 cm) deep. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. columniation columnist Related Content Daily Word Quiz: fresco Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language