Dictionary.com
definitions
  • synonyms

rail rapid transit

See more synonyms on Thesaurus.com
noun
  1. a system of rail transit within an urban area that has exclusive right of way either below, above, or on the ground and so is capable of relatively high operating speed. Abbreviation: RRT
Show More
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018