/ Dictionary / Index S San Jacinto Day: Meaning and Definition of Find definitions for: San" Jacin'to Day" Pronunciation: [key] a legal holiday observed in Texas on April 21. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. San Jacinto sanjak Related Content Daily Word Quiz: apogee Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language