/ Dictionary / Index W whereunto: Meaning and Definition of Find definitions for: where•un•to Pronunciation: (hwâr-un't, wâr- hwâr&secun-t', wâr&sec-), [key] — conj., adv. whereto. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. whereto whereupon Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language