/ Dictionary / Index M marlinespike: Meaning and Definition of Find definitions for: mar•line•spike Pronunciation: (mär'lin-spīk"), [key] — n. Naut. a pointed iron implement used in separating the strands of rope in splicing, marling, etc. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: marlinespike (Thesaurus) marline Marlon Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language