1. A numbered main or principal road

Encyclopedia: A road

• quartile
• quarto
• quartz
• quartz battery
• quartz clock
• quartz crystal
• quartz glass
• quartz lamp
• quartz mill
• quartz oscillator
• quartzite
• quartzose
• quasar
• quash
• quasi
• quasi contract
• quasi-NGO
• quasi-religious
• quasi-royal
• quasi-stellar radio source
• quasiparticle
• quassia
• Quassia amara
• quassia family
• quat