/ Dictionary / Index H headpin: Meaning and Definition of Find definitions for: head•pin Pronunciation: (hed'pin"), [key] — n. Bowling. the pin standing nearest to the bowler when set up, at the head or front of the triangle; the number 1 pin. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: headpin (Thesaurus) headpiece headquarter Related Content Daily Word Quiz: inutiae Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language