/ Dictionary / Index T throughly: Meaning and Definition of Find definitions for: through•ly Pronunciation: (thr'lē), [key] — adv. Archaic. thoroughly. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. through-composed through-other Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language