/ Dictionary / Index T twelve-inch: Meaning and Definition of Find definitions for: twelve-inch Pronunciation: (twelv'inch"), [key] a phonograph record twelve inches in diameter, esp. one with two or more remixes of the same song. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. twelvefold twelve-mile limit Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language