Breadcrumb Home > Dictionary > Index S Second Chamber: Meaning and Definition of Find definitions for: Sec'ond Cham'ber. Pronunciation: [key] See under(def. 1). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. second blessing second childhood ✖ Related Content Daily Word Quiz: sophism Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language