/ Dictionary / Index S San Dimas: Meaning and Definition of Find definitions for: San Di•mas Pronunciation: (san dē'mus), [key] a city in SW California. 24,014. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. San Diego Sandinista 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