trestle (n.)

• branch
• buck
• clotheshorse
• el
• elevated
• embankment
• feeder
• horse
• junction
• line
• metro
• monorail
• rail
• railroad
• railway
• roadbed
• roadway
• sawbuck
• sawhorse
• sidetrack
• siding
• subway
• terminal
• terminus
• track
• tram
• tramline
• trestlework
• trunk
• tube
• turnout
• underground
• workhorse