/ Dictionary / Index S Siddons: Meaning and Definition of Find definitions for: Sid•dons Pronunciation: (sid'nz), [key] 1755–1831, English actress. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: siddons (Thesaurus) siddhi siddur* Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language