/ Dictionary / Index S subcover: Meaning and Definition of Find definitions for: sub•cov•er Pronunciation: (sub'kuv"ur), [key] — n. Math. a set of subsets of a cover of a given set that also is a cover of the set. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. subcosta subcritical 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