/ Dictionary / Index H happen-so: Meaning and Definition of Find definitions for: hap•pen-so Pronunciation: (hap'un-sō"), [key] — n. South Midland and Southern U.S. chance; happenstance; accident: Meeting you today was pure happen-so. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. happening happenstance Related Content Daily Word Quiz: lyceum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language