/ Dictionary / Index C crankpin: Meaning and Definition of Find definitions for: crank•pin Pronunciation: (krangk'pin"), [key] — n. Mach. a short cylindrical pin at the outer end of a crank, held by and moving with a connecting rod or link. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. crank letter crankshaft Related Content Daily Word Quiz: abstain Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language