勾配

1. Origins, structure, and basic meaning

• Structure: 勾配, read こうばい, is a noun for the slope or gradient of a surface.
• Basic usage: 勾配が急だ describes a steep road; 屋根の勾配を測る treats roof pitch as a measured value.

2. Common pitfalls and similar expressions

• Experienced slope and measured gradient
  • A hill and 急 favor slope, while measurement and a drawing favor gradient or pitch.