1. (of roads) having a single lane for traffic in both directions; when vehicles meet one must pull off the road to let the other pass

Antonym: multilane

• segregationist
• segregator
• segue
• seguidilla
• Segway
• Segway HT
• Segway Human Transporter
• sei whale
• seicento
• seiche
• seidel
• Seidlitz powder
• Seidlitz powders
• seif dune
• seigneur
• Seigneur de Bayard
• seigneurial
• seigneury
• seignior
• seigniorage
• seigniorial
• seigniory
• Seiji Ozawa
• seine
• Seine River