/ Dictionary / Index W wis: Meaning and Definition of Find definitions for: wis Pronunciation: (wis), [key] — v.t., v.i. Archaic. to know. Wis. Pronunciation: [key] Wisconsin. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: wis (Thesaurus) wiry Wisby Related Content Daily Word Quiz: hedonist Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language