/ Dictionary / Index S subwoofer: Meaning and Definition of Find definitions for: sub•woof•er Pronunciation: (sub'woof"ur), [key] — n. a loudspeaker component designed to reproduce only extremely low bass frequencies, generally below 125 Hz. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: subwoofer (Thesaurus) subway sub-zero Related Content Daily Word Quiz: lyceum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language