/ Dictionary / Index S soapbox: Meaning and Definition of Find definitions for: soap•box Pronunciation: (sōp'boks"), [key] — n. an improvised platform, as one on a street, from which a speaker delivers an informal speech, an appeal, or political harangue. —adj. of, pertaining to, or characteristic of a speaker or speech from a soapbox. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: soapbox (Thesaurus) soapberry family Soap Box Derby Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language