An acclivity is an upward slope. An example sentence would be: The acclivity was considered very dangerous to all the residents.

Acclivity means an upward slope on a hill. An example sentence would be: Please be careful, that acclivity looks very dangerous.

An acclivity is a slope or inclination at the side of a hill considered as an ascent - contrasting with a declivity, which is considered as a descent.

it is delightfully situated on a bold acclivity one mile E. from the church.

The scientific name for a hill is "acclivity" or "incline." It refers to a raised area of land that is higher than its surroundings but not as high as a mountain.