/ Dictionary / Index P pin mark: Meaning and Definition of Find definitions for: pin' mark" Pronunciation: [key] the circular indentation on the upper part of a type body, made by the pin that ejects the type from the caster. See diag. under Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. pinky pin money Related Content Daily Word Quiz: fervor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language