Which term is synonymous with roof pitch?

The term that is synonymous with roof pitch is "slope." Roof pitch refers to the steepness or angle of a roof, which is typically expressed as a ratio of the vertical rise to the horizontal run. This measurement describes how steeply the roof rises and helps in determining how well the roof will shed water and resist the accumulation of snow, among other factors.

While the term "angle" could describe the degree of inclination, it is more generic and may not specifically relate to roof structures. "Gradient" often pertains to the rate of change in elevation over distance and is commonly used in contexts like roadways or landscapes, rather than specifically for roofs. "Elevation" refers to the height above a given level, usually sea level, and does not convey the steepness or pitch of a roof. Thus, "slope" is the term that directly correlates with the inclination of a roof surface.