/ Dictionary / Index A advt.: Meaning and Definition of Find definitions for: advt. Pronunciation: [key] advertisement. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. advowson Adygei Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language