Breadcrumb Home > Dictionary > Index O oakum: Meaning and Definition of Find definitions for: oa•kum Pronunciation: (ō'kum), [key] — n. loose fiber obtained by untwisting and picking apart old ropes, used for caulking the seams of ships. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: oakum (Thesaurus) oaktag Oakville TrendingHere are the facts and trivia that people are buzzing about. Biographies: Notable Jewish Religious Leaders Current Events This Week: September 2023 Hispanic Population and the 2010 U.S. Census Preamble of the United Nations Charter The Jewish Calendar ✖ Related Content Daily Word Quiz: bildungsroman Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language