/ Dictionary / Index T top-of-the-line: Meaning and Definition of Find definitions for: top-of-the-line Pronunciation: (top'uv-u-līn'), [key] — adj. being the best and usually the most expensive of its kind: The company previewed its top-of-the-line carpeting. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: top-of-the-line (Thesaurus) top-off topog. Related Content Daily Word Quiz: wizened Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language