/ Dictionary / Index W whereon: Meaning and Definition of Find definitions for: where•on Pronunciation: (hwâr-on', -ôn', wâr-), [key] — conj. on what or which. —adv. on what? Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. whereof where're Related Content Daily Word Quiz: resilient Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language