/ Dictionary / Index S Simms: Meaning and Definition of Find definitions for: Simms Pronunciation: (simz), [key] 1806–70, U.S. author. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. simmer simnel cake Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language