/ Dictionary / Index T tube railway: Meaning and Definition of Find definitions for: tube' rail'way Pronunciation: [key] — Brit. Brit. subway (def. 1). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. tuber tubercle Related Content Daily Word Quiz: mamba Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language