/ Dictionary / Index I illy: Meaning and Definition of Find definitions for: il•ly Pronunciation: (il'ē, il'lē), [key] — adv. ill. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ill-wisher Illyria Related Content Daily Word Quiz: sequester Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language