List of New York City Subway lines - Definition

IRT

• Broadway-Seventh Avenue Line
  • Brooklyn Branch
• Dyre Avenue Line
• Eastern Parkway Line
• Flushing Line
• Jerome Avenue Line
• Lenox Avenue Line
• Lexington Avenue Line
• Nostrand Avenue Line
• Times Square-Grand Central Shuttle
• White Plains Road Line

BMT

• Archer Avenue Line
• Astoria Line
• Brighton Line
• Broadway-BMT Line
• Canarsie Line
• Fourth Avenue Line
• Franklin Shuttle
• Jamaica Line
• Manhattan Bridge Line
• Myrtle Avenue Line
• Sea Beach Line
• West End Line

IND

• 63rd Street Line
• Archer Avenue Line
• Concourse Line
• Crosstown Line
• Culver Line
• Fulton Street Line
• Queens Boulevard Line
• Rockaway Line
  • Far Rockaway Branch
  • Rockaway Park Branch
• Sixth Avenue Line
• Eighth Avenue Line

Connections

• 60th Street Tunnel Connection
• Chrystie Street Connection