/ Dictionary / Index L lub: Meaning and Definition of Find definitions for: lub Pronunciation: [key] — Math. Math. See lub. Pronunciation: [key] lubricant. lubricating. lubrication. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. luau Luba Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language