/ Dictionary / Index N notchback: Meaning and Definition of Find definitions for: notch•back Pronunciation: (noch'bak"), [key] — n. a style of back for an automobile in which there is a sharp vertical drop-off from the roof line to the trunk. an automobile having such a back. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. notch baby notched collar Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language