/ Dictionary / Index T tie-off rail: Meaning and Definition of Find definitions for: tie'-off rail" Pronunciation: (tī'ôf", -of"). [key] See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Tientsin tiepin 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