Rail

Rail or rails may refer to:

• Railway track
• The hot rolled steel profiles used on rail tracks or tramway tracks
  • Railway rail
  • Vignoles rail
  • Flanged T rail
  • Grooved rail
  • Barlow rail
• Rail transport
• Rallidae, the group of birds called rails
• A guard rail for safety or support
• Handrail on a stairway
• Rail (band), an American band
• Batten (theater), rail in theatrical lighting
• Power supply rail, a voltage rail. A single voltage provided by a power supply unit
• Common rail, a fuel injection system
• R4!L or Rail: English/American disc jockey and producer
• A third rail used to provide electricity to a trains locomotive

The Simple English Wiktionary has a definition for: rail.