Breadcrumb Home > Dictionary Cite Meaning of tripping line Find definitions for: trip'ping line" Pronunciation: [key] — Naut. Naut. See under (def. 28a). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. tripping triptane Related Content Daily Word Quiz: occultation Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language