/ Dictionary / Index S sub-level: Meaning and Definition of Find definitions for: sub-lev•el Pronunciation: (sub'lev"ul), [key] — n. Mining. a drift, dug through ore, into which overlying material, esp. from an upper layer of ore, is caved. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sublethal sublicense Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language